Faith.

There is one school of thought which says that life is short, enjoy it. Live every moment, you never know which could be your last.
There is another which says that how can you say life is short, it's the longest damned thing you'll ever know.

There is one school of thought that says that if something makes you cry, it's because it touches you at that level to get that emotion out of you.
There is another which says that if someone makes you cry, they're not worth the pain.

There's one school of thought which says that if you really love something, then let it go. If it comes back to you, you know it's yours. If it doesn't, it never was.
There's another which says that if you love someone, never let them go.

There's one school of thought that says that find something that makes you happy. And do it everyday.
Another which says that the value of happiness comes from the fact that it comes so rarely.

Which should I believe?