
My favorite is “Wars are won in the general’s tent.” This is a reminder that preparation is a key to success.
Disorganized at work and not getting much done? Make a list of what needs to be done, define how you will accomplish it, and then rank the tasks by importance.
Have an upcoming interview? Research the company, learn something about the manager before going in, and pick out a few things about yourself that will be valuable to the employer. Oh, don’t forget to have an answer to “Tell me about yourself.”
This quote has instilled routines in myself both at work and at home. You better believe my kids' lunches are made the night before!
What are some motivational or useful quotes that are relevant in your working life?

Great advice, Tim! I've also learned to be prepared for the interview question "Where do you see yourself in five years"
"Today is the first day of the rest of your life"
A bit cheesy but I think the message is something people often need to hear when they feel stuck in a job, or life.
I take it to mean no matter what has happened in the past, what the status quo currently is, it shouldn't stop you from making, or at least trying to make, changes for the better.