According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence to another.

To me, human existence exists on a multiple level, not just on a two-dimensional level, not just having to be identified with what you do and what you say.

Even before I came to Chicago, I had gotten interested in the existence of dispersion of prices under conditions which economic theory said would yield a single price.

Behind me the branches of a wasted and sterile existence are cracking.

That whose existence is necessary must necessarily be one essence.

Not only is the self entwined in society; it owes society its existence in the most literal sense.

All created forms are fractal, as is their purpose, use, and allotted time for existence.

Existence of an excited state is not a prerequisite for the production of inhibition; inhibition can exist apart from excitation no less than, when called forth against an excitation already in progress, it can suppress or moderate it.

Inject a few raisins of conversation into the tasteless dough of existence.

A myth is a way of making sense in a senseless world. Myths are narrative patterns that give significance to our existence.

Factory farming, like comparable evils throughout history, depends for its existence upon concealment. It depends on people either not noticing or willfully averting their gaze.

A civilization which leaves so large a number of its participants unsatisfied and drives them into revolt neither has nor deserves the prospect of a lasting existence.

Like all holy figures whose earthly existence separates them from the broad mass of humanity, a saint is a story, and Joan of Arc's is like no other.

Usually, a band 20 years into its existence doesn't put out its best records.

Man has the possibility of existence after death. But possibility is one thing and the realization of the possibility is quite a different thing.

One cannot legislate problems out of existence. It has been tried.

Memoir is a difficult literary form to pull off when dealing with discrete and poignant moments in a life, even harder when seeking to narrate over 80 years of existence.

No one would choose a friendless existence on condition of having all the other things in the world.

For the word is dialectical in itself and at the same time is integrated into the whole of existence. By this I mean that the word is intended to be lived.

The greatest mystery of existence is existence itself.