Satisfaction of one's curiosity is one of the greatest sources of happiness in life.

The word 'happiness' would lose its meaning if it were not balanced by sadness.

Love is the master key that opens the gates of happiness.

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

Happiness is beneficial for the body, but it is grief that develops the powers of the mind.

The secret to happiness is freedom... And the secret to freedom is courage.

Most folks are as happy as they make up their minds to be.

Happiness lies in the joy of achievement and the thrill of creative effort.

Choose your life's mate carefully. From this one decision will come 90 percent of all your happiness or misery.

Be more dedicated to making solid achievements than in running after swift but synthetic happiness.