Your most unhappy customers are your greatest source of learning.

Success is most often achieved by those who don't know that failure is inevitable.

With any part you play, there is a certain amount of yourself in it. There has to be, otherwise it's just not acting. It's lying.

Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.

Anticipate the difficult by managing the easy

Great companies are built on great products.

It is your decisions, and not your conditions, that determine your destiny.

The man who is swimming against the stream knows the strength of it.

The secret of success in life is for a man to be ready for his opportunity when it comes.

Thinking is the hardest work there is, which is probably the reason so few engage in it.

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

I never pick up an item without thinking of how I might improve it.

Don't gamble; take all your savings and buy some good stock and hold it till it goes up, then sell it. If it don't go up, don't buy it.

If I have ever made any valuable discoveries, it has been due more to patient attention, than to any other talent.

You reach a point where you don't work for money.

Fake it until you make it.

The world does not pay men for that which they 'know'. It pays them for what they do, or induce others to do.

It is better to serve like steel than rust and wither away like iron.

To invent, you need a good imagination and a pile of junk.

It's a terrible thing to look over your shoulder when you are trying to lead - and find no one there

Workers of the world unite; you have nothing to lose but your chains.