Family: The first principle is economics, not emotions;

Workplace: The first principle is value, not effort;
Health: The first principle is self-discipline, not medical treatment;
Entrepreneurship: The first principle is market demand, not personal preference;
Investment: The first principle is risk control, not high returns;
Retirement: The first principle is proactive planning, not relying on children;
Growth: The first principle is reflection, not experience;
Love: The first principle is the track, not stubbornness;
Socializing: The first principle is mutual benefit, not flattery;
Reading: The first principle is thinking, not browsing;
Communication: The first principle is understanding, not persuasion;
Learning: The first principle is practice, not memorization;
May I ask, what is the first principle of stocks or the crypto world?