As it would be foolish to assume that everything in the Pali cannon is a perfect, unaltered quote of the Buddha, I find it more beneficial to focus on understanding the Four Noble Truths and practicing the Noble Eightfold Path. Whether or not the earth is flat, round, a cylinder, a triangle, a Spaghettio, as the Buddha himself states, it is not something we should be concerning ourselves with. This human life, as this thread's subject references, is rare, short, and precious. Let us not waste it on trivial matters.
On the subject of trivial questions.http://www.accesstoinsight.org/tipitaka ... .than.html
On the subject of blind-faith.http://www.accesstoinsight.org/tipitaka ... .than.html