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.

A good idea is never lost. Even though its originator or possessor may die without publicizing it, it will someday be reborn in the mind of another....

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

Eighty percent of success is showing up.

Pleasure in the job puts perfection in the work.

I never did a day's work in my life. It was all fun.

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

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

I am easily satisfied with the very best.

It's fine to celebrate success but it is more important to heed the lessons of failure.

He who will not economize will have to agonize.

It has been my observation that most people get ahead during the time that others waste

I've always found the second book in a series is the hardest to write.

What one has to do usually can be done.

Only you can control your future.

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

Moving from chair to chair, from coffee machine to coffee machine is the limit of my action in most films. But I enjoy being cast in them because I love watching them.

No man ever achieved worthwhile success who did not, at one time or other, find himself with at least one foot hanging well over the brink of failure.

All achievement, all earned riches, have their beginning in an idea.

I'm a slow walker, but I never walk back.

You don't get paid for the hour. You get paid for the value you bring to the hour.