It is necessary to the happiness of man that he be mentally ... - Thomas Paine

"It is necessary to the happiness of man that he be mentally faithful to himself."

Thomas Paine Happiness

Revolutionary, Political Writer British-American 1737–1809

More from Thomas Paine

"The world is my country, all mankind are my brethren, and to do good is my religion."

"These are the times that try men's souls."

"It is forbidden to forbid."

"The strength of the commonwealth is in the honesty of its people."

"Babalú!"

"My greatest joy is making people smile."

"Laughter and love make a home."

"The best things in life are free."