The rules of logic are to mathematics what those of structure are to architecture.

When conscious activity is wholly concentrated on some one definite purpose, the ultimate result, for most people, is lack of balance accompanied by some form of nervous disorder.

Philosophy is that part of science which at present people chose to have opinions about, but which they have no knowledge about. Therefore every advance in knowledge robs philosophy of some problems which formerly it had ...and will belong to science.

[Industrialism's soon diminishing] capacity to supply human needs could be prevented if men exercised any restraint or foresight in their present frenzied exploitation.

True happiness for human beings is possible only to those who develop their godlike potentialities to the utmost.

...I am afraid that education is conceived more in terms of indoctrination by most school officials than in terms of enlightenment. My own belief is that education must be subversive if it is to be meaningful. By this I mean that it must challenge all the things we take for granted, examine all accepted assumptions, tamper with every sacred cow, and instill a desire to question and doubt. Without this the mere instruction to memorise data is empty. The attempt to enforce conventional mediocrity on the young is criminal.

You could live without the opera singer, but not without the services of the baker. On this ground you might say that the baker performs a greater service; but no lover of music would agree.