Ontogeny re-capitulates phylogeny.

Nothing is constant but change! All existence is a perpetual flux of "being and becoming!" That is the broad lesson of the evolution of the world.

Man is not above nature, but in nature.

Mental differences between the lowest men and the animals are less than those between the lowest and the highest man.

By ecology we understand the total science of the connections of the organism to the surrounding external world.

Politics is applied biology.

Civilization and the life of nations are governed by the same laws as prevail throughout nature and organic life.

The real cause of personal existence is not the favor of the Almighty, but the sexual love of one's earthly parents.

As our mother-earth is a mere speck in the sunbeam in the illimitable universe, so man himself is but a tiny grain of protoplasm in the perishable framework of organic nature.

The cell never acts; it reacts.

Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.

Vulnerability is the birthplace of innovation, creativity and change.

the nature need the evil for existence

When I left Chicago, people said, 'Careful with that Texas heat'. I'm from Puerto Rico. I know heat.

My passion has always been books and literature, and teaching.

It's hard to write a good play because it's hard to structure a plot. If you can think of it off the top of your head, so can the audience.

I want to be respected as an actor. There's my ego. But I don't have a great need to be liked by an audience.

I wasn't bullied in high school, I was just ignored.

In general, all cancers have been traditionally characterized by the way they appear under the microscope and the organs in which they arise.

I have been a woman for 46 years and I only recently realized I can't change it and I like it.

I'm not trying to minimize things; I'm trying to bring them back to reality.