It's always too early to quit.
Begin to be now what you will be hereafter.
Do not weep do not wax indignant. Understand.
Only the educated are free.
If you think you can do it, you can.
Well done is better than well said.
After a storm comes a calm.
Be gentle to all and stern with yourself.
The most effective way to do it, is to do it.
The wise does at once what the fool does at last.
A serious and good philosophical work could be written consisting entirely of jokes.