The happiest people are those who think the most interesting thoughts. Those who decide to use leisure as a means of mental development, who love good music, good books, good pictures, good company, good conversation, are the happiest people in the world. And they are not only happy in themselves, they are the cause of happiness in others.

If I have seen further it is by standing on the shoulders of giants.

If one only wished to be happy, this could be easily accomplished; but we wish to be happier that other people, and this is always difficult, for we believe others to be happier than they are.

Ask yourself whether you are happy and you cease to be so.

Remember that happiness is as contagious as gloom. It should be the first duty of those who are happy to let others know of their gladness.

Many search for happiness as we look for a hat we wear on our heads.

Many persons have the wrong idea of what constitutes true happiness. It is not attained through self-gratification but through fidelity to a worthy purpose.

Happiness comes of the capacity to feel deeply, to enjoy simply, to think freely, to risk life, to be needed.

He is rich who owes nothing.

You have succeeded in life when all you really want is only what you really need.