"I have everything, yet have nothing; and although I possess nothing, still of nothing am I in want."

"Charity begins at home."

"Their silence is sufficient praise."

"Too much liberty corrupts us all."

"What is done let us leave alone."

"I bid him look into the lives of men as though into a mirror, and from others to take an example for himself."

"A wise man's question contains half the answer."

"A thinker sees his own actions as experiments and questions--as attempts to find out something. Success and failure are for him answers above all."

"The outcome of any serious research can only be to make two questions grow where only one grew before."

"Ask questions from your heart and you will be answered from the heart."

"In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted."

"Look at all the sentences which seem true and question them."