Consistency is the last refuge of the unimaginative.

The honest ratepayer and his healthy family have no doubt often mocked at the dome-like forehead of the philosopher, and laughed over the strange perspective o…

A poet can survive everything but a misprint.

A thing is not necessarily true because a man dies for it.

I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the worl…

Orthodoxy can be as stubborn in science as in religion. I do not know how to shake it except by vigorous imagination that inspires unconventional work and cont…

Imagination: 'Many of our scientific realities have been born from our hopeful vision, will and emotional determination; forged from fantasy with the tools of …