Do not take life too seriously. You will never get out of it alive.
Laughter is the sun that drives winter from the human face.
Seriousness is the only legitimate weapon of power.
Serious people have an air of strangulation about them.
Serious people have few ideas. People with ideas are never serious.
Laughter is the shortest distance between two people.
The greatest obstacle to discovery is not ignorance—it is the illusion of knowledge.
There is nothing in the world so irresistibly contagious as laughter and good humor.