Brevity Quote by Charles Darwin

As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence,…

— Charles Darwin

Owing to this struggle for life, any variation, however slight and from whatever cause proceeding, if it be in any degree profitable to an…

— Charles Darwin

This preservation of favourable variations and the destruction of injurious variations, I call Natural Selection, or the Survival of the Fittest. Variations neither useful…

— Charles Darwin

I have called this principle, by which each slight variation, if useful, is preserved, by the term of Natural Selection.

— Charles Darwin

“Natural Selection almost inevitably causes much Extinction of the less improved forms of life and induces what I have called Divergence of Character.”

— Charles Darwin

“...natural selection is daily and hourly scrutinizing, throughout the world, every variation, even the slightest; rejecting that which is bad, preserving and adding up…

— Richard Dawkins

I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection, in order to mark its…

— Charles Darwin

The survival or preservation of certain favoured words in the struggle for existence is natural selection.

— Charles Darwin

I think it can be shown that there is such an unerring power at work in Natural Selection, which selects exclusively for the good…

— Charles Darwin

All the acquisitions or losses wrought by nature on individuals, through the influence of the environment in which their race has long been placed,…

— Jean-Baptiste Lamarck

If an organised body is not in the situation and circumstances best adapted to its sustenance and propagation, then, in conceiving an indefinite variety…

— James Hutton

“Darwinists are right to say that selection favours the organisms that leave alive the most progeny, but vigorous growth takes place within a constrained…

— James Lovelock