【三思而行】〖sn s ér xíng〗[think thrice before acting; act with prudence; Discretion is the better part of valour; Don't draw your bow till your arrow is fixed]

三番四复经验教，

思患预防虑周到。

而进倍道见机动，

行化如神获成效。

经过反复考虑，然后再去做。Go through repeatedly consider, then go again do.同：深思熟虑、郑重其事。反：不假思索、轻举妄动。歇：孔夫子出门。谜：辞别姑母武则天。