What you do today can improve all your tomorrows.
Always desire to learn something useful.
It's always too early to quit.
Things do not happen. Things are made to happen.
Quality is not an act, it is a habit.
To know oneself, one should assert oneself.
You never know what motivates you.
If you're going through hell, keep going.
If you can dream it, you can do it.
The wise does at once what the fool does at last.
People are at their happiest if they are true to themselves. I think that applies to their chosen profession, friends and relationships. It goes for your health too. If you are true to yourself, it seems to me everything should work out pretty well.