有明确身份认同的人知道他们是谁以及他们代表什么。他们有强烈的自我意识，不容易被他人左右。
People with a clear sense of identity know who they are and what they stand for. They have a strong sense of self and are not easily swayed by others.
我一直相信，如果你陷入困境，也许事情进展不顺利，你会变得更强大。生活中的一切都是这样。
The arithmetic of modular forms is a key to understanding the deeper mysteries of number theory.
The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.