It's always too early to quit.
Things do not happen. Things are made to happen.
Know or listen to those who know.
After a storm comes a calm.
Begin to be now what you will be hereafter.
If you think you can do it, you can.
The wise does at once what the fool does at last.
The most effective way to do it, is to do it.
Only the educated are free.
Always desire to learn something useful.
I once went to one of those parties where everyone throws their car keys into the middle of the room. I don't know who got my moped, but I drove that Peugeot for years.