Human understanding is marvellously enlightened by daily conversation with men, for we are, otherwise, compressed and heaped up in ourselves, and have our sight limited to the length of our own noses.
Michel de MontaigneIt is a sign of contraction of the mind when it is content, or of weariness. A spirited mind never stops within itself; it is always aspiring and going beyond its strength.
Michel de Montaigne