The best argument is that which seems merely an explanation.

When dealing with people, remember you are not dealing with creatures of logic, but creatures of emotion.

Look your audience straight in the eyes, and begin to talk as if every one of them owed you money.

Great speakers are not born, they're trained.

If you do something for someone else, never remember. If someone does something for you, never forget.

Make a man laugh a good hearty laugh, and you've paved the way for friendship. When a man laughs with you, he, to some extent, likes you.

Criticism is futile because it puts a person on the defensive and usually makes them strive to justify themselves. Criticism is dangerous, because it wounds a person's precious pride, hurts their sense of importance, and arouses resentment.