Every man at three years old is half his height

Nothing is more apt to deceive us than our own judgment of our work. We derive more benefit from having our faults pointed out by our enemies than from hearing the opinions of friends.

I roamed the countryside searching for the answers to things I did not understand. Why shells existed on the tops of mountains along with the imprints of coral and plant and seaweed usually found in the sea. Why the thunder lasts a longer time than that which causes it and why immediately on its creation the lightening becomes visible to the eye while thunder requires time to travel. How the various circles of water form around the spot which has been struck by a stone and why a bird sustains itself in the air. These questions and other strange phenomena engaged my thought throughout my life.

You do ill if you praise, but worse if you censure, what you do not understand.

It 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.

The water which rises in the mountains is the blood which keeps the mountain in life.

The human being, creature of eyes, needs the image.