“I fell in love the way you fall asleep: slowly, then all at once.”

"I'm in love with you, and I'm not in the business of denying myself the simple pleasure of saying true things. I'm in love with you, and I know that love is just a shout into the void, and that oblivion is inevitable, and that we're all doomed and that there will come a day when all our labor has been returned to dust, and I know the sun will swallow the only earth we'll ever have, and I am in love with you.” 

 -Augustus Waters, The Fault In Our Stars

Augustus Waters is a character in John Green's book The Fault In Our Stars. He is a 17 year old cancer survivor who befriends and falls in love with Hazel Grace, the main character and fellow cancer patient.