Whatever you love opens its secrets to you.

I went to the trash pile at Tuskegee Institute and started my laboratory with bottles, old fruit jars and any other thing I found I could use. ... [The early efforts were] worked out almost wholly on top of my flat topped writing desk and with teacups, glasses, bottles and reagents I made myself.

God gave them [the discoveries] to me; how can I sell them to someone else?

When you can do the common things of life in an uncommon way, you will command the attention of the world.

Believe. The promise of God are real. They are as real, as solid, yes infinitely more solid than this table which the materialist so thoroughly believes in. If you would only believe, O ye of little faith.

Never a day passes but that I do myself the honor to commune with some of nature's varied forms.

Learn to do common things uncommonly well; we must always keep in mind that anything that helps fill the dinner pail is valuable.