Buddha was speaking about reality. Reality may be one, in its deepest essence, but Buddha also stated that all propositions about reality are only contingent. Reality is devoid of any intrinsic identity that can be captured by any one single proposition - that is what Buddha meant by "voidness." Therefore, Buddhism strongly discourages blind faith and fanaticism.
If science proves facts that conflict with Buddhist understanding, Buddhism must change accordingly. We should always adopt a view that accords with the facts.
One interesting thing about greed is that although the underlying motive is to seek satisfaction, the irony is that even after obtaining the object of your desire you are still not satisfied. The true antidote of greed is contentment.
I think oysters are more beautiful than any religion,' he resumed presently. 'They not only forgive our unkindness to them; they justify it, they incite us to go on being perfectly horrid to them. Once they arrive at the supper-table they seem to enter thoroughly into the spirit of the thing. There's nothing in Christianity or Buddhism that quite matches the sympathetic unselfishness of an oyster.