The way in which the persecution of Galileo has been remembered is a tribute to the quiet commencement of the most intimate change in outlook which the human race had yet encountered. Since a babe was born in a manger, it may be doubted whether so great a thing has happened with so little stir

From the moment of birth we are immersed in action, and can only fitfully guide it by taking thought.

There is only one subject matter for education, and that is Life in all its manifestations

Other nations of different habits are not enemies: they are godsends. Men require of their neighbours something sufficiently akin to be understood, something sufficiently different to provoke attention, and something great enough to command admiration. We must not expect, however, all the virtues.

The pursuit of mathematics is a divine madness of the human spirit.

The misconception which has haunted philosophic literature throughout the centuries is the notion of 'independent existence.' There is no such mode of existence; every entity is to be understood in terms of the way it is interwoven with the rest of the universe.

The aim of science is to seek the simplest explanation of complex facts... Seek simplicity and distrust it.