It's always too early to quit.
What you do today can improve all your tomorrows.
Either you run the day or the day runs you.
Be gentle to all and stern with yourself.
After a storm comes a calm.
Leap, and the net will appear.
Be thine own palace, or the world's thy jail.
The secret of getting ahead is getting started.
Who seeks shall find.
Know or listen to those who know.
The diversity of the phenomena of nature is so great, and the treasures hidden in the heavens so rich, precisely in order that the human mind shall never be lacking in fresh nourishment.