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

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.

Ontogeny re-capitulates phylogeny.

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.

Truth has the biggest mouth in the universe, wisdom has the largest ears, love has the strongest hands, and faith has the ablest feet.

Shiiiit. Cade weighs a lot. Way more than I thought!” I moaned/sang.

We have inherited new difficulties because we have inherited more privileges.

As a teacher you can see the difference in kids who have parents who were involved. That difference, by the time these kids get to the third grade, is drastic.

Those who do remember it will find new ways to screw it up.

But perhaps he had enough animal strength and detached intelligence that he could make another start.

All any girl needs, at any time in history, is simple velvet and basic diamonds.

Wherever something is "pinned down" there's a little hole - at least one - more likely many.

Man is asked to make of himself what he is supposed to become to fulfill his destiny.

The silence that is in the starry sky, / The sleep that is among the lonely hills.