Years wrinkle the face, but to give up enthusiasm wrinkles the soul.

The function of genius is to furnish cretins with ideas twenty year later.

Only hethat has traveled the road knows where the holesare deep.

People who can't admit they are part of the problem, willnever be part of its solution.

Whatlies behind you and what lies in front of you, pales in comparison to whatlies inside of you.

Everybody thinks of changing humanity and nobody thinks of changing himself.

Words are, of course, the most powerful drug used by mankind.

I think we may safely trust a good deal more than we do.

Words are like spears: Once they leave your lips they can never come back.

Peoplewho are too concerned with how well they are doing will be less successfuland feel less competent than those who focus on the task itself... Somepsychologists call it a conflict between egoorientation,or between extrinsic and intrinsic motivation…

When the defects of others are percieved with so much clarity, it is because one possesses with oneself.

No one can make you feel inferior without your consent.