Don't be irreplacable. If you can't be replaced you can't be promoted. Fact without theory is trivia. Theory without fact is bullshit. If it looks too good to be true, it is too good to be true.
Creativity is great, but plagiarism is faster.
If you did what you always did, you'll get what you always got. Whatever you have, you must either use or lose. Henry Ford 97. The best way to make a fire with two sticks is to make sure one of them is a match. It doesn't matter if you win or lose until you lose.