Self-development is the master key to excellence.
Excellent people simply decided to go an extra mile and take a step ahead of others.
The best development offered to you by anyone will at best make you score very good marks, but if excellence is your benchmark, then you must be self-developing.
Self-development takes you beyond human motivation.
It breaks every form of mediocrity and status quo.
Much of what you will ever become in life is largely dependent of self-development.
Draw up a program of development for yourself, no matter the inconveniences that comes along with it.