bù jiàn tù zi bù sā yīng
you don't release the hawk until you've seen the hare (idiom)
one doesn't act before one is sure to succeed
不
bù
no; not so
见
jiàn
to see
兔
tù
variant of 兔[tu4]
子
zi
noun suffix, as in 椅子[yi3 zi5] "chair"
撒
sā
to let go
鹰
yīng
general term for a bird of prey (eagle, hawk or falcon etc)