“These are the principles for the development of a complete mind: Study the science of art. Study the art of science. Realise that everyone connects to everything else.”

The inaugural Portfolio Construction Forum da Vinci Lecture connects Leonardo da Vinci’s 500-year old philosophy with the Forum’s ethos. He saw the mind as a mirror that could reflect all of nature – but only if it remained open to everything. When we confine ourselves to narrow specialities, we shatter that mirror. We see only fragments where we should see the whole. This is no...