Biology Quote by Roger Wolcott Sperry

Wherever there is a design that is highly successful in a broad range of similar environments, it is apt to emerge again and again,…

— Daniel Dennett

Evolution continually innovates, but at each level it conserves the elements that are recombined to yield the innovations.

— John Henry Holland

Nature gropes and blunders and performs the crudest acts. There is no steady advance upward. There is no design.

— Oliver Sacks

“the process of evolution does not necessarily mean elevation, enhancement, strengthening.”

— Friedrich Nietzsche

It is an error to imagine that evolution signifies a constant tendency to increased perfection. That process undoubtedly involves a constant remodeling of the…

— Thomas Huxley

In order to survive, all systems must evolve by providing greater and greater access to the currents that flow through them. This applies to…

— John Hagel

It is natural selection that gives direction to changes, orients chance, and slowly, progressively produces more complex structures, new organs, and new species. Novelties…

— Francois Jacob

Evolution ever climbing after some ideal good, And Reversion ever dragging Evolution in the mud.

— Alfred Lord Tennyson

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

— Gerald Edelman

“Evolution is a trajectory through multidimensional space, in which every step of the way has to represent a body capable of surviving and reproducing…

— Richard Dawkins

The general direction of evolution is to produce a serially imprinting, multibrained creature able to decipher its own program, create the technology to leave…

— Timothy Leary

Since an early age, I’ve been intrigued by the idea of design evolution,

— Phillip Lim