Discipline does not mean suppression and control, nor is it adjustment to a pattern or ideology. It means a mind that sees 'what is' and learns from 'what was'.
Mind you, there is no value in learning. You are all mistaken in learning. The only value of knowledge is in the strengthening, the disciplining, of the mind.
No doubt it is an evil to be bound by laws, but it is necessary at the immature stage to be guided by rules; in other words, as the Master used to say that the sapling must be hedged round, and so on.
To invest successfully over a lifetime does not require a stratospheric IQ, unusual business insights, or inside information. What's needed is a sound intellectual framework for making decisions and the ability to keep emotions from corroding that framework. You must supply the emotional discipline.
Every discipline develops standards of professional competence to which its workers are subject... Every scientific community is a society in the small, so to speak, with its own agencies of social control.
The interesting thing about golf is that the presidency requires focus and discipline, and golf requires focus and discipline. It was a way to make sure that parts of my life were focused and disciplined.