The value of a thought is in its consequences for behavior.

"A child who reads will always have a friend."

"The best stories are those that refuse to end."

Sometimes the simplest solutions in chemistry are the most elegant and powerful.

你知道，有些鸟儿是注定不会被关在牢笼里的，它们的每一片羽毛都闪耀着自由的光辉。