"My candle burns at both its ends;
It will not last the night;
But oh, my foes, and oh, my friends --
It gives a lovely light."
-Edna St. Vincent Millay
I thought this was a very nice little poem. It is short and sweet, but it also has a good lesson. Life is like a candle; it does not last forever, but while it does you should let it give light for as long as possible. For as it is said, it is not about the number of breaths we take, but the moments that take our breath away.
I think we should enjoy a few nice moments each and every day. There is something good about every day no matter how horrible your life may seem. There is always someone worse off, and most of us have it better than we think we do.
It depends on our attitude also. Our attitude is one of the essential factors in how we look at a situation. As Tom Lehrer once humorously put it: "Life is like a sewer. What you get out of it depends on what you put into it."