Whether or not you can observe a thing depends upon the theory you use. It is the theory which decides what can be observed.

The opinion prevailed among advanced minds that it was time that belief should be replaced increasingly by knowledge; belief that did not itself rest on knowledge was superstition, and as such had to be opposed.

I cannot accept any concept of God based on the fear of life or the fear of death, or blind faith. I cannot prove to you that there is no personal God, but if I were to speak of him I would be a liar.

The splitting of the atom has changed everything except for how we think.

Thought is the organizing factor in man, intersected between the causal primary instincts and the resulting actions.

It would be a sad situation if the bag was better than the meat wrapped in it.

One can only continue to expect to be read if one omits everything that is unimportant.