没有信赖不够勇敢
[méi yŏu xìn lài bù gòu yŏng găn]
This nickname '没有信赖不够勇敢' translates to 'Lack of trust means lack of bravery'. It reflects an individual's feeling that they cannot be brave enough without trust from others or within themselves, highlighting a belief in the importance of trust as a foundation for personal courage.