Keep spreading the love, world. But don't get greedy and overpopulate the planet.
Try to keep an open mind.
As far as we know, as a species, the only reason we were put on this planet is to help continue life.
I usually like to keep to myself, but others can tell if I'm upset because I'm keeping to myself.
Don't take things for granted.
I like to remember what I have to be thankful for. When it gets bad, I usually list them out loud to my wife and myself. Helps me maintain a balanced perspective.