The true measure of success is how you adapt to change.
To know that one does not write for the other, to know that these things I am going to write will never make me loved by the one I love.
解释:节俭就会产生对生产不利的因素,侈靡则造成对财富的耗费。
The division of labour, so far as it can be introduced, occasions, in every art, a proportionable increase of the productive powers of labour.