
Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind.Leonardo da Vinci
Leonardo da Vinci was an Italian Renaissance painter, engineer and anatomist whose notebooks reveal an insatiable curiosity about nature and art. He painted the Mona Lisa and The Last Supper, and filled thousands of pages with studies, inventions and observations.
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Source: The Notebooks of Leonardo da Vinci · ✓ Source verified

Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind.Leonardo da Vinci
I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.Leonardo da Vinci

He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.Leonardo da Vinci

Water is the driving force of all nature.Leonardo da Vinci
Who sows virtue reaps honour.Leonardo da Vinci

Wisdom is the daughter of experience.Leonardo da Vinci

Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigour of the mind.Leonardo da Vinci

Painting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.Leonardo da Vinci