I have not failed. I've just found 10,000 ways that won't work.

Do one thing at a time, and while doing it put your whole soul into it to the exclusion of all else.

What I cannot create, I do not understand.

He who will not economize will have to agonize.

Our greatest glory is not in never failing, but in rising up every time we fail.

Without work, all life goes rotten, but when work is soulless, life stifles and dies.

The way to get started is to quit talking and begin doing.

Nothing will work unless you do.

I am easily satisfied with the very best.

Speak softly and carry a big stick; you will go far.

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

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

Success is a lousy teacher. It seduces smart people into thinking they can't lose.

The best way to destroy an enemy is to make him a friend.

The finest task for an Engineer – to survey, to plan, to suggest resources and material, assemble them for task in hand, implement and produce results.

Discipline is the bridge between goals and accomplishment.

Every action has its pleasures and its price.

Whosoever desires constant success must change his conduct with the times.

Only put off until tomorrow what you are willing to die having left undone

Success means we go to sleep at night knowing that our talents and ablities were used in a way that served others.

It is a cursed evil to any man to become as absorbed in any subject as I am in mine