Space and time are the framework within which the mind is constrained to construct its experience of reality.
Two things fill the mind with ever new and increasing admiration and awe...
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.
Great minds think for themselves.
We ourselves introduce that order and regularity in the appearance which we entitle "nature". We could never find them in appearances had we not ourselves, by the nature of our own mind, originally set them there.
The wise man can change his mind; the stubborn one, never.