It is not the critic who counts, not the man who points out how the strong man stumbled, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena; whose face is marred by dust and sweat and blood; who strives valiantly; who errs and comes short again and again; who knows the great enthusiasms, the great devotions, and spends himself in a worthy cause; who, at the best, knows in the end the triumph of high achievement; and who, at worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who know neither victory nor defeat
Teddy Roosevelt
The most splendid achievement of all is the constant striving to surpass yourself and to be worthy of your own approval.
Denis Waitley
Failures are finger posts on the road to achievement.
Charles F. Kettering
Productive achievement is a consequence and an expression of health, self-esteem, not its cause
Nathaniel Branden
Dissatisfaction with possession and achievement is one of the requisites to further achievement
John Hope
Achievement is not always success, while reputed failure often is. It is honest endeavor, persistent effort to do the best possible under any and all circumstances.
Orison Swett Marden
We know the good, we apprehend it clearly, but we can't bring it to achievement.
Euripides
If you fear making anyone mad, then you ultimately probe for the lowest common denominator of human achievement
Carter, Jr.
The humorous man recognizes that absolute purity, absolute justice, absolute logic and perfection are beyond human achievement and that men have been able to live happily for thousands of years in a state of genial frailty
Brooks Atkinson
Happiness is that state of consciousness which proceeds from the achievement of one's values.
Ayn Rand
I am perhaps more proud of having helped to redeem the character of the cave-man than of any other single achievement of mine in the field of anthropology.
Henry Fairfield Osborn
Without continual growth and progress, such words as improvement,achievement, and success have no meaning.
Benjamin Franklin