Do not weep do not wax indignant. Understand.
Either you run the day or the day runs you.
Without hard work, nothing grows but weeds.
What you do today can improve all your tomorrows.
Leap, and the net will appear.
Go for it now. The future is promised to no one.
Be gentle to all and stern with yourself.
The wise does at once what the fool does at last.
Begin to be now what you will be hereafter.
Problems are not stop signs, they are guidelines.
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.