“If you love someone, you must be prepared to set them free.” 

“Life has many ways of testing a person's will, either by having nothing happen at all or by having everything happen all at once.” 

“The mirror reflects perfectly; it makes no mistakes because it doesn't think. To think is to make mistakes.” 

“Life sometimes separates people so that they can realize how much they mean to each other.” 

“Vanity of vanities, all is vanity, and there is nothing new under the sun, as Solomon said more than three thousand years ago.” 

“How people treat other people is a direct reflection of how they feel about themselves.” 

P.S: Few of lines that I like in "The Winner Stands Alone by Paulo Coelho"