Live life fully while you're here. Experience everything. Take care of yourself and your friends. Have fun, be crazy, be weird. Go out and screw up! You're going to anyway, so you might as well enjoy the process. Take the opportunity to learn from your mistakes: find the cause of your problem and eliminate it. Don't try to be perfect; just be an excellent example of being human.
I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived. I did not wish to live what was not life... I wanted to live so sturdily and so Spartan-like as to put to rout all that was not life... to drive life into a corner to know it by experience and be able to give an account of it in my next excursion.
Your life and my life flow into each other as wave flows into wave, and unless there is peace and joy and freedom for you, there can be no real peace or joy or freedom for me. To see reality--not as we expect it to be but as it is--is to see that unless we live for each other and in and through each other, we do not really live very satisfactorily; that there can really be life only where there really is, in just this sense, love.
It is quite true what Philosophy says: that Life must be understood backwards. But that makes one forget the other saying: that it must be lived --forwards. The more one ponders this, the more it comes to mean that life in the temporal existence never becomes quite intelligible, precisely because at no moment can I find complete quiet to take the backward-looking position.
Life moves on, whether we act as cowards or heroes. Life has no other discipline to impose, if we would but realize it, than to accept life unquestioningly. Everything we shut our eyes to, everything we run away from, everything we deny, denigrate or despise, serves to defeat us in the end. What seems nasty, painful, evil, can become a source of beauty, joy, and strength, if faced with an open mind. Every moment is a golden one for him who has the vision to recognize it as such.
The longer I live the more beautiful life becomes. If you foolishly ignore beauty, you will soon find yourself without it. Your life will be impoverished. But if you invest in beauty, it will remain with you all the days of your life.
Deep down, no one really believes they have a right to live. But this death sentence generally stays tucked away, hidden beneath the difficulty of living. If that difficulty is removed from time to time, death is suddenly there, unintelligibly.