Generate a metaphor for a person who is quite stubborn.
A person who is quite stubborn can be seen as a mighty oak tree, deeply rooted in their beliefs and unwilling to bend or sway with the winds of change.
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a metaphor for a person who is quite stubborn.

### Output:
A person who is quite stubborn can be seen as a mighty oak tree, deeply rooted in their beliefs and unwilling to bend or sway with the winds of change.