Old age takes in part savoury wisdom for its food - see to that your old age will not lack in nourishment.
Leonardo da VinciA day will come in which men will look upon an animal's murder the same way they look today upon a man's murder.
Leonardo da VinciIf you throw a stone in a pond... the waves which strike against the shores are thrown back towards the spot where the stone struck; and on meeting other waves they never intercept each other's course... In a small pond one and the same stroke gives birth to many motions of advance and recoil.
Leonardo da Vinci