While I do not say that the statement is wrong, I have to say that it's incomplete. There's one more important factor that should be included there: Happiness.
Let me paraphrase: "To be successfull you have to Work Happily". If you enjoy what you do, you'll put your heart and soul there. You'll invest your life, you'll automatically work smarter and harder (in a positive way) and no doubt you'll be successful.
No matter how smart you do your work if you do not enjoy it, you won't get the best result you should.
So, to be able to work happily, you can:
- do the work that you really enjoy doing, or..
- leave the job that you hate to pursue the one that you love, or...
- if you are not fortunate enough to get the job that you love, start loving it. Find little things that you like from it.
I also think that this principle can also be applied to your life. If you live your life happily, you'll get the best out of it. If you think your life is miserable, try to find things that you love and enjoy it.
There's a nice statement that I read in a book titled "Fish" that said (more or less, I forgot the exact wording): While you can't always control things that come into your life, you can control what you want to feel about them.
You can mourn about all the bad things that happened to you and live your life that way, or you can enjoy all the good things that life has given you and walk a totally different way of life.
Just my two cents.
Please share your views and opinion about this matter.