"The most successful people are those who don't have any illusions about who they are. They know themselves well and they can move in the direction of their best talents. They know the kind of culture they thrive in and how they can benefit from that culture. Unfortunately, most people don't understand themselves. Most people don't want to lose their illusions about themselves, although they say they want to take charge of their career."
- Bud Bray

The display of emotion varies by culture....

"Take, for example, the expression of enthusiasm. In the United States, it’s culturally acceptable, even admirable, to show enthusiasm in a business setting, assuming it’s appropriate for the situation. When arguing for a point in a meeting, for example, it is quite appropriate to express your opinions passionately; it can help to convince those around you....
In many other cultures, however, enthusiasm means something quite different. In Japan, for example, there are strict boundaries about when and where people are allowed to display emotion. During the regular workday, Japanese individuals are not typically emotionally expressive. Even if they feel excited about their work, they will rarely show it explicitly."
- Andy Molinsky, Emotional Intelligence Doesn’t Translate Across Borders
https://hbr.org/2015/04/emotional-intelligence-doesnt-translate-across-borders

"What was once called the objective world is a sort of Rorschach ink blot, into which each culture, each system of science and religion, each type of personality, reads a meaning only remotely derived from the shape and color of the blot itself." 
- Lewis Mumford, "Orientation to Life," The Conduct of Life, 1951

"The most successful people are those who don't have any illusions about who they are. They know themselves well and they can move in the direction of their best talents. They know the kind of culture they thrive in and how they can benefit from that culture. Unfortunately, most people don't understand themselves. Most people don't want to lose their illusions about themselves, although they say they want to take charge of their career."
- Bud Bray