Study me, reader, if you delight in me, because on very few occasions shall I return to the world, and because the patience for this profession is found in very few, and only in those who wish to compose things anew. Come, oh men, to see the miracles that such studies will disclose to nature.
Leonardo da VinciWhen you put your hand in a flowing stream, you touch the last that has gone before and the first of what is still to come.
Leonardo da VinciAn arch consists of two weaknesses which, leaning one against the other, make a strength.
Leonardo da VinciThe knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.
Leonardo da VinciIt had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.
Leonardo da VinciA bird maintains itself in the air by imperceptible balancing, when near to the mountains or lofty ocean crags; it does this by means of the curves of the winds which as they strike against these projections, being forced to preserve their first impetus bend their straight course towards the sky with divers revolutions, at the beginning of which the birds come to a stop with their wings open, receiving underneath themselves the continual buffetings of the reflex courses of the winds.
Leonardo da Vinci