Tim Minchin

You don't have to have a dream. Be micro-ambitious. Put your head down and work with pride on whatever is in front of you. You never know where you might end up.

Be hard on your opinions. A famous bon mot asserts opinions are like assholes in that everyone has one. There is great wisdom in this but I would add that opinions differ significantly from assholes in that yours should be constantly and thoroughly examined.

It is an incredibly exciting thing, this one meaningless life of yours.