There are but two powers in the world, the sword and the mind. In the long run the sword is always beaten by the mind.

The keys of a fortress are always well worth the retirement of the garrison when it is resolved to yield only on those conditions. On this principle it is always wiser to grant an honorable capitulation to a garrison which has made a vigorous resistance than to risk an assault.

Impossible is a word to be found only in the dictionary of fools. Wise people create opportunities for themselves and make everything possible.

It is only by prudence, wisdom, and dexterity, that great ends are attained and obstacles overcome. Without these qualities nothing succeeds.

Hating clouds the mind. It gets in the way of strategy. Leaders cannot afford to hate.

If you have a really good idea, stick to it, but be flexible on how you get there. Be stubborn on your vision but flexible on the details... People who are right a lot change their mind... They have the same data set that they had at the beginning, but they wake up, and they re-analyze things all the time, and they come to a new conclusion, and then they change their mind.