I am sufficiently convinced already that the members of a profession know their own calling better than anyone else can know it.

There is a class, moreover, by whom all these scientific theories, and more are held as ascertained facts, and as the basis of philosophical inferences which strike at the root of theistic beliefs.

The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated to be distinctively either plant or animal, while, as respects ordinary plants and animals, the difficulty of laying down a definition has become far greater than ever before.

Many years ago it was taught that plants and animals were composed of different materials: plants, of a chemical substance of three elements,- carbon, hydrogen, and oxygen; animals of one of four elements, nitrogen being added to the other three.

The people who work in the scientific field, they need help to convey what it's about.

My knowledge and thirst for knowledge has no expiration date... It goes until I'm dead. I will be learning and studying from youth, as well as people older than me... Having degrees as a person of color in this country is the one thing that can't nobody take away from me.

My parents were very spiritual folks. I grew up studying the Bible. My dad's a Christian academy teacher. I grew up with a big spiritual influence. It's a big part of my life.

I think British science is becoming more like American science - and then there is everybody else, I'm afraid.