When we lose one we love, our bitterest tears are called forth by the memory of hours when we loved not enough.
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."
Cheese - milk's leap toward immortality.
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it.
Be courteous to all, but intimate with few; and let those few be well tried before you give them your confidence.
If you scatter thorns, don't go barefoot.
Get away from the crowd when you can. Keep yourself to yourself, if only for a few hours daily.