Happiness is wanting what you get.
If you want to develop courage, do the thing you fear and keep on doing it until you have a record of successful experiences behind you. That is the quickest and surest way ever yet discovered to conquer fear. You can conquer almost any fear if you will only make up your mind to do so. For remember, fear doesn't exist anywhere except in the mind.
If you are not too well versed in the subject of discussion, ask questions. People like to share information on a topic that is interesting to them. If you don't know what to say at all, say compliments.
The basis of successful sales is sincerity, and there is nothing more fatal than blatant flattery.
Let me repeat: in a business environment, the ability to make friends and influence people is six times more important than the most outstanding knowledge.
I have come to the conclusion that there is only one way under high heaven to get the best of an argument – and that is to avoid it. Avoid it as you would avoid rattlesnakes and earthquakes.