I do know that when I am 60, I should be attempting to achieve different personal goals than those which had priority at age 20.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.

Nothing is particularly hard if you divide it into small jobs

I readily absorb ideas from every source, frequently starting where the last person left off

One must be sane to think clearly, but one can think deeply and be quite insane.

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.

I don't like that man. I must get to know him better.

Be a yardstick of quality. Some people aren't used to an environment where excellence is expected.

Pleasure in the job puts perfection in the work.

What I cannot create, I do not understand.

You don't have to be great to start, but you have to start to be great

Only you can control your future.

Never make excuses. Your friends don't need them and your foes won't believe them.

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.

I believe that anyone can conquer fear by doing the things he fears to do, provided he keeps doing them until he gets a record of successful experiences behind him.

If you are the master be sometimes blind, if you are the servant be sometimes deaf.

If you aspire to the highest place, it is no disgrace to stop at the second, or even the third, place.

Genius is eternal patience.

True progress quietly and persistently moves along without notice.

Formulate and stamp indelibly on your mind a mental picture of yourself as succeeding. Hold this picture tenaciously and never permit it to fade. Your mind will seek to develop this picture!