I have never seen the slightest scientific proof of the religious ideas of heaven and hell, of future life for individuals, or of a personal God.

Direct thought is not an attribute of feminity. In this, women are now centuries behind man.

Remember, life is all what you focus on. Learn lessons and keep moving forward towards your goals and dreams... "I have not failed. I've just found 10,000 ways that won't work."

I do not believe in the God of the theologians; but that there is a Supreme Intelligence I do not doubt.

Most of my ideas belonged to other people who never bothered to develop them.

Genius is not inspired. Inspiration is perspiration.

A failure teaches you that something can't be done-that way.