Definition of 一寸の虫にも五分の魂 (いっすんのむしにもごぶのたましい)

いっすんむしまし

一寸の虫にも五分の魂

いっすんのむしにもごぶのたましい

issunnomushinimogobunotamashii

expression
tread on a worm and it will turn, even a tiny bug will defend itself, even the weakest and smallest beings have their own wills, so do not make light of them(proverb)
Related Kanji
one, one radical (no.1)
measurement, tenth of a shaku, a little, small
insect, bug, temper
five
part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100
soul, spirit