Most of these have probably been posted. Can't be arsed to look through 57 pages for each quote. Most are also humourous and are likely not the point of this thread.
"If at first the idea is not absurd, then there is no hope for it." - Albert Einstein
"I love fools' experiments. I am always making them." - Charles Darwin
"In hatred as in love, we grow like the thing we brood upon. What we loathe, we graft into our very soul." - Mary Renault
"A learning experience is one of those things that say, 'You know that thing you just did? Don't do that.'" - Douglas Adams
"Love means having to say you're sorry every fifteen minutes." - John Lennon
"Some dying men are the most tyrannical; and certainly, since they will shortly trouble us so little for evermore, the poor fellows ought to be indulged."
"The beauty myth moves for men as a mirage; it's power lies in it's ever-receeding nature. When the gap is closed, the lover embraces only his own disillusion."
"Faith, like a jackal, feeds among the tombs, and even from these dead doubts she gathers her most vital hope."
"We must not confuse dissent with disloyalty. We must remember always that accusation is not proof and that conviction depends upon evidence and due process of law. We will not walk in fear, one of another. We will not be driven by fear into an age of unreason, if we dig deep in our history and our doctrine, and remember that we are not descended from fearful men ' not from men who feared to write, to speak, to associate and to defend causes that were, for the moment, unpopular." - Edward Roscoe Murrow.