“It is not necessary that whilst I live I live happily; but it is necessary that so long as I live I should live honorably.”
“Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.”
“Two things fill the mind with ever-increasing wonder and awe, the more often and the more intensely the mind of thought is drawn to them: the starry heavens above me and the moral law within me.”