My 4 principles of success:
1. Love what you do and do what you love.
2. Be an expert at it and make something of it.
3. Benefit people with it and always give more than you take.
4. Make a living out of it but don't be a slave to it.
I don't care if you are a doctor or a janitor. If you have all 4 of these, you are (at least to me) a successful person.
p/s : jika kita perasan bagus, bermakna kita merasa Allah menciptakan kita cukup sempurna. Alhamdulillah