Most ignorances are vincible, and in the greater number of cases stupidity is what the Buddha pronounced it to be, a sin. For, consciously, or subconsciously, it is with deliberation that we do not know or fail to understand-because incomprehension allows us, with a good conscience, to evade unpleasant obligations and responsibilities, because ignorance is the best excuse for going on doing what one likes, but ought not, to do.

The collected works of Aldous Huxley (ed. 1947)