Quote by Avicenna

"Knowledge is power."

"The human body is like a machine, and the mind is its engine."

"Healing is a matter of time, but it is sometimes also a matter of opportunity."

"The proof of truth is that it can endure."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."