I make it my business to extract from Nature what ever nutriment she can furnish me.... I milk the sky and the earth.

It is not when I am going to meet him, but when I am just turning away and leaving him alone, that I discover what God is. I say, God. I am not sure that that is the name. You will know what I mean.

The botanist should make interest with the bees if he would know when the flowers open and when they close.

All endeavour calls for the ability to tramp the last mile, shape the last plan, endure the last hours toil.

The success of great scholars and thinkers is commonly a courtier-like success, not kingly, not manly.

In the meanest are all the materials of manhood, only they are not rightly disposed.

Let your life be a counter friction to stop the machine.