A sympathetic Scot summed it all up very neatly in the remark, "You should make a point of trying every experience once, excepting incest and folk dancing."
Always be nice to those younger than you, because they are the ones who will be writing about you.
All things are difficult before they are easy.
Therefore search and see if there is not some place where you may invest your humanity.
The people I distrust most are those who want to improve our lives but have only one course of action.
Keep cool and you command everybody.
You can't have a light without a dark to stick it in.