Go here and click through the quotations until you find 5 you like or seem to sum up a philosophy of life:
"Work is not always required... there is such a thing as sacred idleness, the cultivation of which is now fearfully neglected."
"Everyone is necessarily the hero of his own life story."
"I have a simple philosophy. Fill what's empty. Empty what's full. And scratch where it itches."
Alice Roosevelt Longworth
"Please give me some good advice in your next letter. I promise not to follow it."
Edna St. Vincent Millay
"What I look forward to is continued immaturity followed by death."
(ETA Torchwood spoilers in the comments.)