We never understand how little we need in this world until we know the loss of it.

- James M. Barrie

Everything that irritates us about others can lead us to an understanding of ourselves.

- Carl Jung

Giving opens the way for receiving.

- Florence Scovel Shinn

Memory is the mother of all wisdom.

- Aeschylus

True knowledge exists in knowing that you know nothing.

- Socrates

The road of excess leads to the palace of wisdom.

- William Blake

Being entirely honest with oneself is a good exercise.

- Sigmund Freud

Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.

- Archimedes

When a thing is done, it's done. Don't look back. Look forward to your next objective.

- George C. Marshall

The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark.

- Michelangelo

Quick decisions are unsafe decisions.

- Sophocles

You can't sweep other people off their feet, if you can't be swept off your own.

- Clarence Day

A prudent question is one-half of wisdom.

- Francis Bacon

Climb the mountains and get their good tidings.

- John Muir

Never let your head hang down. Never give up and sit down and grieve. Find another way. And don't pray when it rains if you don't pray when the sun shines.

- Richard M. Nixon

Our character is what we do when we think no one is looking.

- H. Jackson Brown, Jr.

A little knowledge that acts is worth infinitely more than much knowledge that is idle.

- Khalil Gibran

The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.

- William Arthur Ward

Imagination is more important than knowledge.

- Albert Einstein

It is impossible to love and to be wise.

- Francis Bacon