窮當益堅

poor but ambitious (idiom); hard-pressed but determined / the worse one's position, the harder one must fight back

surname Yi

benefit / profit / advantage / beneficial / to increase / to add / all the more

poor / destitute / to use up / to exhaust / thoroughly / extremely / (coll.) persistently and pointlessly

to be / to act as / manage / withstand / when / during / ought / should / match equally / equal / same / obstruct / just at (a time or place) / on the spot / right / just at

at or in the very same... / suitable / adequate / fitting / proper / to replace / to regard as / to think / to pawn / (coll.) to fail (a student)

strong / solid / firm / unyielding / resolute