Alexander Graham Bell — "Man is an animal who is constantly striving to rise to a higher altitude."

"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."

"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…"

"I had made up my mind to find that for which I was searching even if it required the remainder of my life. After innumerable failures I finally uncovered the principle for which I was searching, and I…"

"Any one, if he will only observe, can find some little thing he does not understand as a starter for an investigation."

"I have been called a robber. I have been called a thief. I have been called a charlatan. I have even been called a murderer. But I have never been called a liar."