Leonardo da Vinci

Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.

Why does the eye see a thing more clearly in dreams than the imagination when awake?

Our life is made by the death of others.

As a well-spent day brings happy sleep, so a life well spent brings happy death.

While I thought that I was learning how to live, I have been learning how to die.

Just as courage imperils life, fear protects it.

He who is fixed to a star does not change his mind.

I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death.

The human foot is a masterpiece of engineering and a work of art.

Where the spirit does not work with the hand, there is no art.

Art is never finished, only abandoned.