"The problem, often not discovered until late in life, is that when you look for things in life like love, meaning, motivation, it implies they are sitting behind a tree or under a rock. The most successful people in life recognize, that in life they create their own love, they manufacture their own meaning, they generate their own motivation.Source
For me, I am driven by two main philosophies, know more today about the world than I knew yesterday. And lessen the suffering of others. You'd be surprised how far that gets you."
Neil deGrasse Tyson is an American astrophysicist and science communicator. Since 2006 he has hosted the educational science television show NOVA scienceNOW on PBS, and has been a frequent guest on The Daily Show, The Colbert Report, Real Time with Bill Maher, and Jeopardy!.
Tyson is also known for his generous participation in Q&A's on the popular website Reddit where users are allowed to "ask anything" (Tyson's answers are highlighted in blue username "neiltyson".