There is a God shaped vacuum in the heart of every man which cannot be filled by any created thing, but only by God, the Creator, made known through Jesus.
We have an idea of truth, invincible to all scepticism.
Which is the more believable of the two, Moses or China?
True eloquence makes light of eloquence. True morality makes light of morality.
We must learn our limits. We are all something, but none of us are everything.
When a soldier complains of his hard life (or a labourer, etc.) try giving him nothing to do.