Quote by Edward O. Wilson

At a minimum, in explaining evolutionary pathways through time, the constraints imposed by history rise to equal prominence with the immediate advantages of adaptation.

— Stephen Jay Gould

Evolution ... is opportunistic, hence unpredictable.

— Ernst Mayr

Evolution works by selection, not by instruction. There is no final cause, no teleology, no purpose guiding the overall process

— Gerald Edelman

The proof of evolution lies in those adaptations that arise from improbable foundations.

— Stephen Jay Gould

Evolution thus is merely contingent on certain processes articulated by Darwin: variation and selection.

— Ernst Mayr

Evolution - evolutionary change - does not happen quickly.

— Jack Horner

The first and most important reason for its elimination is the unquestioned fact that evolution is not a science; it is a hypothesis only,…

— Anonymous

The neutral zone of selective advantage in the neighbourhood of zero is thus so narrow that changes in the environment, and in the genetic…

— Ronald Fisher

Involution always precedes evolution.

— James Arthur Ray

Natural selection is a mechanism for generating an exceedingly high degree of improbability.

— Ronald Fisher

Given that evolution is a fact, this lack of evolution needs to be explained.

— J. William Schopf

“For in the ever-repeated origination of highly organized individuals from an infinitesimal germ, the working-out of a prearranged plan of growth and development seems…

— Hans Jonas