The successful man will profit from his mistakes and try again in a different way.

The only way on Earth to influence other people is to talk about what they want and show them how to get it.

Keep your mind open to change all the time. Welcome it. Court it. It is only by examining and reexamining your opinions and ideas that you can progress.

...the best possible way to prepare for tomorrow is to concentrate with all your intelligence, all your enthusiasm, on doing today's work superbly today. That is the only possible way you can prepare for the future.

History has repeatedly been changed by people who had the desire and the ability to transfer their convictions and emotions to their listeners.

A good deed, "said the prophet Mohammed, "is one that brings a smile of joy to the face of another." Why will doing a good deed every day produce such astounding efforts on the doer? Because trying to please others will cause us to stop thinking of ourselves: the very thing that produces worry and fear and melancholia.

Everybody in the world is seeking happiness - and there is one sure way to find it. That is by controlling your thoughts. Happiness doesn't depend on outward conditions. It depends on inner conditions.