Percentages are why I am rich.

A person who never made a mistake never tried anything new.

If you are the master be sometimes blind, if you are the servant be sometimes deaf.

From each according to his abilities, to each according to his needs.

The best way to destroy an enemy is to make him a friend.

Let others lead small lives, but not you. Let others argue over small things, but not you. Let others cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you.

I've always found the second book in a series is the hardest to write.

If it's me against 48, I feel sorry for the 48.

Pleasure in the job puts perfection in the work.

A good idea is never lost. Even though its originator or possessor may die without publicizing it, it will someday be reborn in the mind of another....

Real success can only come if there is a change in our societies and in our economics and in our politics.

Chop your own wood and it will warm you twice

Leadership and learning are indispensable to each other.

I do not like to repeat successes, I like to go on to other things.

Whenever you are asked if you can do a job, tell 'em, 'Certainly I can!' Then get busy and find out how to do it.

Do one thing at a time, and while doing it put your whole soul into it to the exclusion of all else.

The production of too many useful things results in too many useless people.

It is a cursed evil to any man to become as absorbed in any subject as I am in mine

When asked, 'How do you write?' I invariably answer, 'one word at a time.'

Opportunity is missed by most people because it is dressed in overalls and looks like work.

Success is liking yourself, liking what you do, and liking how you do it.