Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

Try not to become a man of success but rather to become a man of value.

Don't mistake activity with achievement.

The secret of success is constancy to purpose.

If you can't make it good, at least make it look good.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal.

If you think your teacher is tough, wait until you get a boss. He doesn't have tenure.

If we all did the things we are really capable of doing, we would literally astound ourselves

Well done is better than well said.

Practice does not make perfect. Perfect practice makes perfect.

If youre in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.

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

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

We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.

If you aim at nothing, you will hit it every time.

Inspiration exists, but it has to find you working.

If you're trying to create a company, it's like baking a cake. You have to have all the ingredients in the right proportion.

Four things for success: work and pray, think and believe.

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

For the bureaucrat, the world is a mere object to be manipulated by him.