Thought is the wind, knowledge the sail, and mankind the vessel.

Health is the greatest possession. Contentment is the greatest treasure. Confidence is the greatest friend. Non-being is the greatest joy.

A compliment is something like a kiss through a veil.

Only those who have learned the power of sincere and selfless contribution experience life's deepest joy: true fulfillment.

Wonder rather than doubt is the root of all knowledge.

Change your thoughts and you change your world.

Every heart that has beat strongly and cheerfully has left a hopeful impulse behind it in the world, and bettered the tradition of mankind.

Great hopes make great men.

The most authentic thing about us is our capacity to create, to overcome, to endure, to transform, to love and to be greater than our suffering.

Man never made any material as resilient as the human spirit.