I have learned to use the word 'impossible' with the greatest caution. Wernher von Braun

• possibility

I am looking for a lot of men who have an infinite capacity to not know what can't be done. Henry Ford

• possibility
• potential

If you limit your choices only to what seems possible or reasonable, you disconnect yourself from what you truly want, and all that is left is a compromise. Robert Fritz

• desire
• goals
• ambition
• possibility

The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it. Harry Fosdick

• possibility

Always listen to experts. They'll tell you what can't be done and why. Then do it. Robert Heinlein

• possibility

No matter how dark things seem to be or actually are, raise your sights and see the possibilities - always see them, for they're always there. Norman Vincent Peale

• optimism
• possibility
• despair

I could use a hundred men who don't know there is such a word as impossible. Henry Ford

• possibility
• potential

Don't let what you cannot do interfere with what you can do. John Wooden

• possibility

Act as if it were impossible to fail. Dorothea Brande

• failure
• possibility

We greatly overestimate what we can accomplish in one year. But we greatly underestimate what we can accomplish in five years. Peter Drucker

• possibility

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

• possibility

It is often merely for an excuse that we say things are impossible. Francois de La Rochefoucauld

• excuses
• possibility

One of the advantages of being young is that you don't let common sense get in the way of doing things that everybody knows are impossible. Anonymous

• age
• possibility

I have a no limitations belief in my Creator, a no limitations belief in myself, a no limitations belief in other people, and a no limitations belief in what we can do together. Paul Meyer

• confidence
• possibility
• limitations

Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible. Saint Francis

• possibility
• initiative

Every day we slaughter our finest impulses. That is why we get a heart-ache when we read those lines written by the hand of a master and recognize them as our own, as the tender shoots which we stifled because we lacked the faith to believe in our own powers, our own criterion of truth and beauty. Every man, when he gets quiet, when he becomes desperately honest with himself, is capable of uttering profound truths. We all derive from the same source. There is no mystery about the origin of things. We are all part of creation, all kings, all poets, all musicians; we have only to open up, to discover what is already there. Henry Miller

• possibility
• potential

Men are generally idle, and ready to satisfy themselves, and intimidate the industry of others, by calling that impossible which is only difficult. Samuel Johnson

• possibility