You are never really playing against an opponent. You are playing against yourself, your own highest standards. And when you reach your limits, that is real joy.                                            —Arthur Ashe

There are no limits to either time or distance, except as man himself may make them. I have but to touch the wind to know these things.                                                                                 —Hal Borland

Limited expectations yield only limited results.

—Susan Laurson Willig

I seldom think about my limitations, and they never make me sad. Perhaps there is just a touch of yearning at times; but it is vague, like a breeze among flowers.                                          —Helen Keller

Every person takes the limits for their own field of vision for the limits of the world.      —Arthur Schopenhauer

All of us are, to some extent, victims of what we are. We are not limited by our imaginations, but by our ability to do what we imagine. We are not too often limited by our abilities as much as by circumstances. And we are not as often limited by our circumstances as much as by the lack of the will to respond.                                           

                                                                                             —Dee Bowman

It is of great use to the sailor to know the length of his line, though he cannot with it fathom all the depths of the ocean.

—John Locke

Know the limits of what you can expect from yourself and those around you. Be willing to push those limits, but understand that pushing beyond them is subject to one of the few absolute laws that govern human nature: the law of diminishing returns. Pushed beyond limits, people work inefficiently, poorly, and even counterproductively.  —Gary Ryan Blair

Of course we all have our limits, but how can you possibly find your boundaries unless you explore as far and as wide as you possibly can? I would rather fail in an attempt at something new and uncharted than safely succeed in a repeat of something I have done.    —A.E. Hotchner

The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

—Nathaniel Hawthorne

Learning too soon our limitations, we never learn our powers.

—Mignon McLaughlin

Creativity arises out of the tension between spontaneity and limitations, the latter (like the river banks) forcing the spontaneity into the various forms which are essential to the work of art or poem.

 —Rollo May

Any person who selects a goal in life which can be fully achieved has already defined his own limitations.

—Cavett Robert