The shortest road to ruin is to emulate the methods of your adversary.
Don't be content to be the chip off the old block - be the old block itself.
I am convinced that there is no smarter, handier, or more adaptable body of troops in the world.
He has to conceal what he would most wish to make public, and make public what he would most wish to conceal.
I always like to learn, but I don't always like to be taught.
The tired parts of the mind can be rested and strengthened not merely by rest, but by using other parts.