Mathematics, in its widest significance, is the development of all types of formal, necessary, deductive reasoning.

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

After you understand about the sun and the stars and the rotation of the earth, you may still miss the radiance of the sunset.

No religion can be considered in abstraction from its followers, or even from its various types of followers.

Wisdom alone is true ambition's aim, wisdom is the source of virtue and of fame; obtained with labour, for mankind employed, and then, when most you share it, best enjoyed.

An open mind is all very well in its way, but it ought not to be so open that there is no keeping anything in or out of it.

In England if something goes wrong--say, if one finds a skunk in the garden--he writes to the family solicitor, who proceeds to take the proper measures; whereas in America, you telephone the fire department. Each satisfies a characteristic need; in the English, love of order and legalistic procedure; and here in America, what you like is something vivid, and red, and swift.