人要有脾气才能长志气
[rén yào yŏu pí qì cái néng zhăng zhì qì]
Expresses a viewpoint on personal development, meaning 'A man can gain ambition only if he shows some temper'. It reflects the owner's opinion: without any temper or backbone, we will not gain enough ambition for greater goals. It also suggests one needs principles and shouldn’t be too yielding.