The wise does at once what the fool does at last.
Only the educated are free.
Never complain and never explain.
Always desire to learn something useful.
Things do not happen. Things are made to happen.
Begin to be now what you will be hereafter.
Be kind whenever possible. It is always possible.
Do not weep do not wax indignant. Understand.
It's always too early to quit.
What you do today can improve all your tomorrows.
I spent every night until four in the morning on my dissertation, until I came to the point when I could not write another word, not even the next letter. I went to bed. Eight o'clock the next morning I was up writing again.