坚守自己的本性怎么说英语

To stay true to one's nature means to remain true to one's character, values, and bepefs. It means being authentic and genuine, and not letting external pressures or influences change who you are. In Engpsh, you can say:

"I'm going to stay true to myself."
"I'm going to stick to my guns and not compromise my values."
"I'm going to remain authentic and genuine, no matter what."