“The lesson Buddha and Marcus Aurelius had taught centuries earlier: "Nothing is miserable unless you think it so; and on the other hand, nothing brings happiness unless you are content with it."”

“Is all your knowledge to go so utterly for nothing unless other people know that you possess it?”
Usque adeone<br/>scire tuum nihil est, nisi te scire hoc sciat alter?

“Nothing will work unless you do.”

“To be wronged is nothing, unless you continue to remember it.”

“There will be no real content among American women unless they are made and kept more ignorant or unless they are given equal opportunity with men to use what they have been taught. And American men will not be really happy until their women are.”

“A dimwit thinks nothing is funny unless it's mean.”

“Nothing is going to change unless you first change”

“"Tell me if you had music lessons at school?"
"Yes, I had."
"Do you remember this school's address? Go there and set fire to it. They taught you nothing."”

“do you think it is
better to be clever than to be good?”
“Good for what?” asked the Doctor. “You are good for
nothing unless you are clever.”

“Unless you love someone, nothing else makes sense.”