Heat of blood makes young people change their inclinations often, and habit makes old ones keep to theirs a great while.

Heat of blood makes young people change their inclinations often, and habit makes old ones keep to theirs a great while.

热血使年轻人经常改变他们的爱好，习惯使老年人保持他们的爱好很长一段时间。

-- Francois VI, Duc De La Rochefoucauld 弗朗索瓦六世，罗切福科公爵