There is nothing more difficult to carry out, nor more doubtful of success, nor more dangerous to handle, that to institute a new order of things

A holding company is the people you give your money to while you're being searched.

One of the main weaknesses of mankind is the average man's familiarity with the word 'impossible'.

The best of artists has no conception that the marble alone does not contain within itself.

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

What one has to do usually can be done.

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

No one ever is defeated until defeat has been accepted as a reality.

The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack in will.

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.

Because ideas have to be original only with regard to their adaptation to the problem at hand, I am always extremely interested in how others have used them...

As you start to walk out on the way, the way appears.

Lisa, if you don't like your job you don't strike. You just go in every day and do it really half-assed. That's the American way.

Apply yourself both now and in the next life. Without effort, you cannot be prosperous. Though the land be good, You cannot have an abundant crop without cultivation.

Well done is better than well said.

Thought, backed by strong desire, has a tendency to transmute itself into its physical equivalent.

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

Without a sense of urgency, desire loses its value.

Old Professors never die, they just lose their faculties.

I hope that I may always desire more than I can accomplish.

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