A cup is useful only when it is empty; and a mind that is filled with beliefs, with dogmas, with assertions, with quotations, is really an uncreative mind.

The thoughts that come often unsought, and as it were, drop into the mind, are commonly the most valuable of any we have.

A half-truth won for ourselves is worth more than a whole truth learned from others.

Two man looks out through the same bars: the one sees the mud, the one the stars.

Informationis a negotiator's greatest weapon.

Nothingso completely baffles one who is full of trick and duplicity himself, thanstraightforward and simple integrity in another.

People whoare too concerned with how well they are doing will be less successful andfeel less competent than those who focus on the task itself... Somepsychologists call it a conflict between egoorientation, or between extrinsicand intrinsic motivation...

It'sgood to shut up sometimes.

The greatest trust between man and man is the trust ofgiving counsel.

The ruler proclaims the good news himself; he sends the servants out to announce the bad news.

A moment's insight is sometimes worth a life's experience

All the power that we exercise over others depends on thepower we exercise over ourselves.