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.

Tears come from the heart and not from the brain

Avoid studies of which the result dies with the worker.

Blinding ignorance does mislead us. O! Wretched mortals, open your eyes!

If you do not rest on the good foundation of nature, you will labour with little honor and less profit.

As you cannot do what you want, Want what you can do

We may call painting the grandchild of nature.