Part 1 of Essay
The value of Philosophy is, in fact, to be sought largely in its uncertainty. The man who has no tincture of Philosophy goes through life imprisoned in the prejudices derived from common sense, from the habitual beliefs of his age or his nation, and from the convictions which have grown up in his mind without the co-opera ....

Part 2 of Essay
.... unanswerable theory, the solution to life, the universe and everything, then philosophy would itself become responsible for inducing the very mental laziness which it should help us to avoid. Disagreement and debate between the adherents of rival theories is, moreover, essential to the health of philosophy. Just as many major advances of science are catalysed by war, so the great intellectual insights are sparked by discussion. If there were universal agreement on one philosophical theory, then all further though ....