Leonardo da Vinci: Thinking Through Art and Nature

An artist who investigated how things work

Leonardo da Vinci treated a face, a river and a machine as subjects that could be understood through patient looking. Born on 15 April 1452 near Vinci in Tuscany, he died on 2 May 1519 in France. Between those dates he worked as a painter, designer and engineer while investigating subjects that today belong to several different disciplines. His importance rests on connections between these activities: the study of light helped him paint convincing faces, and drawing helped him think about structures hidden inside bodies.

Calling him a Renaissance polymath is accurate, but it can also hide the practical circumstances of his work. Leonardo needed commissions, materials, assistants and patrons. Some projects became paintings; others remained proposals or unfinished investigations. The distance between an idea on paper and a functioning object is essential to understanding both his achievement and the legends surrounding it.

Florence and the education of a workshop

Leonardo's father, Ser Piero, was a notary; his mother was named Caterina. The name da Vinci identifies his place of origin rather than a modern hereditary surname. He trained in Florence in the workshop of Andrea del Verrocchio, where painting belonged to a broader culture of making. A workshop could handle sculpture, metalwork, drawings and decorative commissions as well as pictures. Learning involved preparing materials and solving practical problems, not simply developing an individual style.

This environment helps explain why Leonardo moved comfortably between art and technical design. A painter had to consider geometry, pigments and the behaviour of light; a sculptor needed to understand bodies and materials. Florence also offered demanding patrons and examples of ancient and contemporary art. Leonardo absorbed this setting while increasingly insisting that direct observation could test what established authorities claimed.

Milan: opportunity under a powerful patron

By the early 1480s Leonardo had moved to Milan, where he entered the orbit of Ludovico Sforza. In a famous letter presenting his abilities, he emphasised engineering and military proposals before discussing painting. The order reflects the needs of a court concerned with defence, spectacle and prestige. Court employment could support ambitious work, but it also made an artist dependent on political fortunes and changing priorities.

A huge equestrian monument for the Sforza family illustrates these constraints. Leonardo studied horses and prepared a large clay model, but the proposed bronze monument was never completed. Its scale posed difficult casting problems, while war disrupted the project. An unfinished commission therefore tells us more than that Leonardo had many interests: it reveals the resources and stability required to turn artistic invention into a public object.

Painting bodies, light and thought

In works such as the Virgin of the Rocks, figures appear to occupy a shared atmosphere rather than stand as sharply outlined shapes. Leonardo used gradual transitions between light and shadow to model volume. The term sfumato, associated with a smoky softness, describes this avoidance of abrupt boundaries. Its purpose was not merely decorative blur. Soft transitions help a painted cheek turn in space and make a face seem responsive to surrounding light.

He also investigated how gestures and expressions communicate states of mind. A convincing figure required more than correct proportions: its movement had to belong to the situation represented. His drawings explore alternatives, adjust positions and examine details. They allow us to see composition as an evolving inquiry rather than the effortless delivery of a fully formed inspiration.

The Last Supper: a dramatic instant

Painted in the 1490s in the refectory of Santa Maria delle Grazie in Milan, the Last Supper presents the apostles reacting to Christ's announcement of betrayal. Their hands, bodies and faces carry different responses, while the grouping of the figures organises a crowded narrative. Lines in the painted architecture direct attention towards Christ. Perspective and emotional choreography work together, making the event intelligible across a broad wall.

The painting also exposes the risks of experimentation. Leonardo worked on a dry wall using an experimental method rather than traditional wet-plaster fresco. This allowed a different pace and handling of detail, but the surface proved unstable and deteriorated early. The museum responsible for the work documents its history. Its survival involves extensive conservation, so today's surface cannot be treated as an untouched record of his brushwork.

A portrait kept in progress

Leonardo began the Mona Lisa in Florence around 1503 and retained it for years. The sitter is identified as Lisa Gherardini, wife of Francesco del Giocondo. The portrait joins a stable arrangement of hands and torso to exceptionally subtle facial modelling. Behind the figure, distant landforms and waterways extend the picture beyond the immediate human encounter.

Its celebrated smile makes particular sense alongside Leonardo's interest in perception. The corners of the mouth are not pinned down by a rigid contour, allowing the expression to seem elusive. Yet no secret code is required to explain the portrait's sophistication. Its power emerges from a coordinated arrangement of pose, light, tonal transitions and the viewer's attention.

Notebooks as instruments of investigation

Leonardo's surviving papers mix diagrams, calculations, observations, shopping-like reminders and drafts of texts. Subjects range from water and geometry to plants and machinery. The Forster notebooks at the Victoria and Albert Museum show this variety on a manageable scale. A page can preserve a question, a proposed solution and a visual experiment without becoming a finished argument.

He frequently wrote from right to left in mirror script and was left-handed. This writing is readable with practice or a mirror; describing it as an elaborate encryption exaggerates the evidence. More significant is the relationship between words and images. A sequence of drawings can compare movements or reveal how parts fit together more clearly than a paragraph alone. For Leonardo, drawing was an active means of reasoning.

Anatomy: seeing beneath the surface

Leonardo dissected human and animal bodies to investigate bones, muscles and organs. His anatomical sheets use multiple views, sections and explanatory notes to communicate three-dimensional structures on a flat page. These methods connect an artist's concern with visible form to questions about the mechanisms that produce movement. A shoulder, for example, becomes a relationship between bones and muscle action rather than an isolated outline.

His investigations were remarkable, but they did not make him a modern physician with complete knowledge of physiology. Some interpretations remained tied to inherited ideas, and comparisons between species could mislead him. He did not publish the comprehensive anatomical treatise he envisaged. Consequently, the surviving studies demonstrate extraordinary personal inquiry without having transformed contemporary medicine through broad circulation.

Machines, maps and the difference between design and invention

Leonardo drew flying devices, water-management schemes, mechanisms and military equipment. He examined bird flight and considered how wings might generate movement. Such pages show persistent attempts to connect natural processes with mechanical solutions. They should be read individually: a speculative concept, a detailed mechanism and a practical construction plan are different kinds of evidence.

It is therefore misleading to say that he simply invented the modern helicopter or tank. Some drawings resemble later technologies, but resemblance does not establish successful construction or a direct chain of influence. His map of Imola, made in 1502 while serving Cesare Borgia, demonstrates another kind of technical accomplishment: precise graphic information could support decisions about a real urban landscape.

What his legacy actually changed

Leonardo spent his final years in France under the patronage of Francis I. After his death, his assistant Francesco Melzi inherited many papers. Their later dispersal helps explain why the notebooks survive in different collections rather than as one orderly encyclopaedia. Material assembled from his writings on painting circulated after his lifetime, while much scientific work became widely appreciated considerably later.

His paintings influenced other artists through their compositions, atmospheric unity and treatment of human presence. The notebooks offer a different legacy: evidence of how questions can travel between fields. Neither unfinished projects nor mistaken explanations cancel that achievement. They make it more concrete. Leonardo's enduring example lies in the disciplined effort to connect seeing, representing and understanding, while continually returning an attractive idea to the test of observable detail.