Opportunity is missed by most people because it is dressed in overalls and looks like work.
Success in life depends on action, that is, on what you do, and not what you Feel or think, and the price of success is hard work.
A man paints with his brains and not with his hands.
It is easier for a tutor to command than to teach.
Action is the foundational key to all success.
Be quick, but don't hurry.
The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence.
Many people would no more think of entering journalism than the sewage business - which at least does us all some good.
If you are the master be sometimes blind, if you are the servant be sometimes deaf.
The role of the artist is to ask questions, not answer them.
Most people spend more time and energy going around problems than in trying to solve them.
Always bear in mind that your own resolution to succeed is more important than any other.
The way to screw up somebody's life is to give them what they want.
There is but one dependable method of accumulating and legally holding riches, and that is by rendering useful service.
Without work, all life goes rotten, but when work is soulless, life stifles and dies.
You can observe a lot just by watching.
To be clever enough to get all that money, one must be stupid enough to want it.
From each according to his abilities, to each according to his needs.
One must be sane to think clearly, but one can think deeply and be quite insane.
Nothing will work unless you do.
A person who never made a mistake never tried anything new.