The most powerful sign is ...

The most powerful sign is that your work no longer enchants you - it\'s not deep, delightful, and mutually satisfying. When this happens, it may be time to look for new challenges.
The most powerful sign is that your work no longer enchants you - it's not deep, delightful, and mutually satisfying. When this happens, it may be time to look for new challenges.
 Guy Kawasaki

More phrases

Courage - a perfect sensibility of the measure of danger, and a mental willingness to endure it.
 William Tecumseh Sherman
I'm pretty conservative when it comes to money. My parents were very working class and constantly working. There was always a very strong work ethic and that's put a more conservative, "save for a rainy day" mentality into me.
The kind of group mentality that we had lived under since the Second World War is starting to erupt, and the craving for individualism is now much stronger. It's not as taboo anymore, as it was when I was younger.
 Nicolas Winding Refn
The overall similarity is probably in the mentality of law enforcement officers. There's a sense of wanting to really uphold a sense of morality and make sure that the laws are enforced to the letter, whenever possible.
 Benjamin McKenzie
Courage is rightly esteemed the first of human qualities... because it is the quality which guarantees all others.

Quotes from the same author

You know, if you're Guy Kawasaki and you create a car that gets 500 miles a gallon with zero emissions, people on the Internet would say: 'I could have done that in half an hour, and it's been done before. What's the big deal? I expected something more from him.' Meanwhile, they didn't do it, right? They're still living at home with their mothers.
 Guy Kawasaki
Frequently, crashes are followed with a message like 'ID 02'. 'ID' is an abbreviation for idiosyncrasy and the number that follows indicates how many more months of testing the product should have had.
 Guy Kawasaki
The two most important things about people on a revolutionary team are their ability and passion. Their educational level or work experience is meaningless--most of the engineers who did ground-breaking work of the Macintosh design didn't even graduate from college.
 Guy Kawasaki
I have four kids in a private school who have not yet entered college. Their tuition is what keeps me motivated. Life is simple sometimes.
 Guy Kawasaki
Every person has the ability to improve the life of someone else.
 Guy Kawasaki