Heredity: the traits that a disobedient child gets from the other parent.

Of course it must, and our scientific men must be criticized boldly. They will not feel comfortable when you and I are through with them.

A theory of personal resurrection or reincarnation of the individual is untenable when we but pause to consider the magnitude of the idea. On the contrary, I must believe that rather than the survival of all, we must look for survival only in the spirit of the good we have done in passing through.Once obsolete, an automobile is thrown to the scrap heap. Once here and gone, the human life has likewise served its purpose. If it has been a good life, it has been sufficient. There is no need for another.

Less than fifteen per cent of the people do any original thinking on any subject. The greatest torture in the world for most people is to think.

As a scientist I cannot help feeling that all religions are on a tottering foundation. None is perfect or inspired. As for their prophets, there are as many today as ever before, only now science refuses to let them overstep the bounds of common sense.

Science is knowledge arranged and classified according to truth, facts, and the general laws of nature.

We must return to nature and nature's god.