"Life is a bitch, and she is back in heat."
-Roudy Roddy Piper from the movie "They Live"
"Give a man a fish, and he'll have food for a day. Teach a man to fish and he'll ask you to cook it too."
And on a more serious note..
"Thinking derived from the physical sciences is increasingly exerting its influence in domains far beyond the original realm of physics. It has become an influence in human life and is dangerous, because the far reaching development in the technological power which is taking place around us is not accompanied by a simultanieously expanding vision of the aims toward wich the life of mankind can be directed."
For the life of me I cant remember where I got that quote, but I liked it so much I wrote it down.
"...And no philosophy, sadly, has all the answers. No matter how assured we may be about certain aspects of our belief, there are always painful inconsistencies, exceptions, and contradictions. This is true in religion as it is in politics, and is self-evident to all except fanatics and the naive. As for the fanatics, whose number is legion in our own time, we might be advised to leave them to heaven. They will not, unfortunately, do us the same courtesy. They attack us and each other, and whatever their protestations to peaceful intent, the bloody record of history makes clear that they are easily disposed to restore to the sword. My own belief in God, then, is just that -- a matter of belief, not knowledge. My respect for Jesus Christ arises from the fact that He seems to have been the most virtuous inhabitant of Planet Earth. But even well-educated Christians are frustated in their thirst for certainty about the beloved figure of Jesus because of the undeniable ambiguity of the scriptural record. Such ambiguity is not apparent to children or fanatics, but every recognized Bible scholar is perfectly aware of it. Some Christians, alas, resort to formal lying to obscure such reality."
- Steve Allen, comdeian, from an essay in the book "The Courage of Conviction", edited by Philip Berman
For all the good quotes you would ever want, run the program /usr/bin/fortune on any Unix box