10 amazing tips from the great orator and psychologist Dale Carnegie:

1. If you want to find happiness, stop thinking about gratitude and ingratitude and bring inner joy that brings the very commitment.

2. Never try to get even with your enemies, because it will bring you a much more harm than them.

3. Do as General Eisenhower, never think for a minute about the people who you trouble.

4. Do not criticize, condemn not, do not complain.

5. Remember that your companion may be completely wrong. But he does not think so. Do not blame him.

6. Be able to stand up to the position of another person and understand what he needs, not you. From those who will be able to do this, will the whole world.

7. If a person is trying to use you for their own purposes, his cross out from among their acquaintances.

8. If fate presents you lemons, make lemonade.

9. Be busy. This is the cheapest medication on earth - and one of the most effective.

10. Behave as if you're already happy, and you'll be really happy.