Stubbornness. Most people get over their childhood dreams and adjust to life as an adult where we don't get to do what we wanted. I'm still trying to make it happen 19 years later.

Motivation comes from within when you have a strong enough reason to do something. Like it aligns with who you are, what you desire. But it comes and goes. Discipline let's me hold the fort day to day regardless of what motivation is doing.

Is stubbornness itself axiomatic or actually derived from an intrinsic motivation?

I don't know, it's a good question.

Love, for me... hatred, for some others. Also greed; sexual desire; fear; hunger; the need to protect oneself or family. The desire for power or wealth.

Aren't they just different forms of either intrinsic or external motivations?

Edit: I realise conscientiousness is a much more precise word choice than discipline