"The greatest discovery is to find that which has always been there, but has never been seen."

"I am no poet, but if you think for yourselves, as I proceed, the facts will form a poem in your minds."

"I have often regretted that I was not able to pursue a more regular course of study."

"It is not enough to know, we must apply. It is not enough to will, we must do."

"I am no poet, but if you think for a moment of the energy that is in a single drop of water, you will see a poetry in it."