He can who thinks he can, and he can't who thinks he can't.

Every great man has become great, every successful man has succeeded, in proportion as he has confined his powers to one particular channel.

No one should voluntarily remain in an environment which prevents his development.

Don't wait for extraordinary opportunities. Seize common occasions and make them great. Weak men wait for opportunities; strong men make them.

Money, influence, and position are nothing compared with brains, principles, energy and perseverances.

There can be no failure to a man who has not lost his courage, his character, his self respect, or his self-confidence. He is still a King.

Most men fail, not through lack of education or agreeable personal qualities, but from lack of dogged determination, from lack of dauntless will.