"Before anything else, preparation is the key to success."

"I am a believer in unconscious cerebration. The brain is working all the time, though we do not know it. At night it follows up what we think in the daytime. When I have worked a long time on one thin…"

"Great discoveries and improvements invariably involve the cooperation of many minds. I may be given credit for having blazed the trail, but when I look at the subsequent developments I feel the credit…"

"The deaf should not intermarry."

"The world is full of people who are waiting for someone to come along and inspire them to be what they always wanted to be."