Be honest, Look for areas where you can admit error and say so. Apologize for your mistakes. It will help disarm your opponents and reduce defensiveness.

Happiness doesn't depend on any external conditions, it is governed by our mental attitude.

If we want to find happiness, let's stop thinking about gratitude or ingratitude and give for the inner joy of giving.

arouse in the other person an eager want. He who can do this has the whole world with him. He who cannot walks a lonely way.

The value of a smile... It costs nothing, but creates much. It enriches those who receive, without impoverishing those who give. It happens in a flash and the memory of it sometimes lasts forever. None are so rich they can get along without it, and none so poor but are richer for its benefits. It creates happiness in the home, fosters good will in a business, and is the countersign of friends.

...Be grateful for what you have to be thankful for instead of complaining about the little things that annoy you.

Criticism of others is futile and if you indulge in it often you should be warned that it can be fatal to your career.