Reading is easy, thinking is difficult, and it is useless without them. Franklin

Reading makes up for the deficiency of nature, and experience makes up for the deficiency of reading. bacon

The more books you read without thinking, the more you will feel that you understand. And the more you read and think, the more clearly you will see how little you know. -Voltaire

A scholar is not necessarily learned. Real common sense is to know knowledge, think and work. -Xu Teli

Reading is to the mind what exercise is to the body. Edison