Just remember, once you're over the hill you begin to pick up speed.
What's done can't be undone.
One of the truest tests of integrity is its blunt refusal to be compromised.
I hear and I forget. I see and I remember. I do and I understand.
Generosity is giving more than you can, and pride is taking less than you need.
Gravity is only the bark of wisdom's tree; but it preserves it
Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.
Let him who would move the world first move himself.
Doubt is the origin of wisdom
As the soft yield of water cleaves obstinate stone, So to yield with life solves the insolvable: To yield, I have learned, is to come back again.
Wonder is the beginning of wisdom.
If you don't stand for something you will fall for anything.
Happiness is not an ideal of reason, but of imagination.
Only idiots refuse to change their minds.
Never ruin an apology with an excuse.
Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.
As our case is new, we must think and act anew.
I've never known any trouble than an hour's reading didn't assuage.
All that we see or seem is but a dream within a dream.
Intelligence is a moral category.
Be realistic: Plan for a miracle