You should not act in haste.

不宜操之过急。

《新英汉大辞典》

Don't act in haste.

做事不要太匆忙。

youdao

If we do not correctly diagnose the causes and instead act in haste and implement more rather than better regulations, we can do long-term harm.

如果我们没对原因做出正确的判断而基于采取行动，采用一个较好的调控政策，从长远看，这可能造成危害。

youdao

Similarly it really feels as if come the summer, the BOE will act in haste.

FORBES: Raising Rates Will Be A Mistake, Stick With Equities

Those questions are open, compliance experts say, because Congress passed the Patriot Act in haste and set tight deadlines.

ECONOMIST: Security and financial services

Although many in Congress are seeking a detailed plan today, we must be careful not to act in haste, foregoing better approaches.

WHITEHOUSE: Jacob J. Lew Testimony to House Science Committee, 08/06/1998 | The White House