Who said “Metaphysics is a restaurant where they give you a thirty thousand page menu, and no food.”?

“Two half philosophers will probably never a whole metaphysician make.”

“That's metaphysics, my dear fellow. It's forbidden me by my doctor, my stomach won't take it.”

“Four thousand volumes of metaphysics will not teach us what the soul is.”

“Metaphysics means nothing but an unusually obstinate effort to think clearly.”

“Metaphysics is the finding of bad reasons for what we believe upon instinct; but to find these reasons is no less an instinct.”

“The place to improve the world is first in one's own heart and head and hands.”

“The truth knocks on the door and you say, go away, I'm looking for the truth, and it goes away. Puzzling.”

“The solutions all are simple -- after you have arrived at them. But they're simple only when you know already what they are.”

“Traditional scientific method has always been at the very best, 20 -- 20 hindsight. It's good for seeing where you've been. It's good for testing the truth of what you think you know, but it can't tell you where you ought to go.”

“It is always good policy to tell the truth unless of course you are an exceptionally good liar. Jerome K. Jerome It is a puzzling thing. The truth knocks on the door and you say, go away, I'm looking for the truth. and so it goes away. Puzzling.”