The human heart refuses To believe in a universe Without a purpose.
Nature does nothing in vain, and in the use of means to her goals she is not prodigal.
When a thoughtful human being has overcome incentives to vice and is aware of having done his bitter duty, he finds himself in a state that could be called happiness, a state of contentment and peace of mind in which virtue is its own reward.
One who makes himself a worm cannot complain afterwards if people step on him.
Only the descent into the hell of self-knowledge can pave the way to godliness.
The schematicism by which our understanding deals with the phenomenal world ... is a skill so deeply hidden in the human soul that we shall hardly guess the secret trick that Nature here employs.