Riches do not respond to wishes. They respond only to definite plans, backed by definite desires, through constant persistence.

But Marge, what if we chose the wrong religion? Each week we just make God madder and madder.

Boredom is one of the most blissful feelings.

Don't spend time beating on a wall, hoping to transform it into a door.

He who thinks little errs much

Don't ever promise more than you can deliver, but always deliver more than you promise.

I have not failed. I've just found 10,000 ways that won't work.

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

There is nothing impossible to him who will try.

I don't want to achieve immortality through my work... I want to achieve it through not dying.

You may have to fight a battle more than once to win it.

True progress quietly and persistently moves along without notice.

By failing to prepare, you are preparing to fail.

Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.

If you treat people right they will treat you right - ninety percent of the time.

Make the lie big, make it simple, keep saying it, and eventually they will believe it

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

A man paints with his brains and not with his hands.

Most people spend more time and energy going around problems than in trying to solve them.

Percentages are why I am rich.

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