Evolution... is the most powerful and the most comprehensive idea that has ever arisen on Earth.

...it is curiosity, initiative, originality, and the ruthless application of honesty that count in research- much more than feats of logic and memory alone.

Evolution... is the most powerful and the most comprehensive idea that has ever arisen on Earth.

The scientific doctrine of progress is destined to replace not only the myth of progress, but all other myths of human earthly destiny. It will inevitably become one of the cornerstones of man's theology, or whatever may be the future substitute for theology, and the most important external support for human ethics.

Today the god hypothesis has ceased to be scientifically tenable, has lost its explanatory value and is becoming an intellectual and moral burden to our thought. It no longer convinces or comforts, and its abandonment often brings a deep sense of relief.

Amoeba has her picture in the book, Proud Protozoon!-Yet beware of pride, All she can do is fatten and divide; She cannot even read, or sew, or cook... The Worm can crawl But has no eyes to look. The Jelly-fish can swim But lacks a bride.

...everything in psychosocial evolution which can properly be called advance, or progress, or improvement, is due directionaly to the increase or improvement of knowledge.