Proverb:Look before you leap

Look before you leap.

Think carefully about what you are about to do before you do it.

•  I'm not saying you shouldn't sign the lease for that apartment. I'm just saying you should look before you leap. Jill: 
• I'm thinking about going to night school. Jane: Are you sure you can spare the time and the money? Look before you leap.
• If you're thinking of buying a house, my advice is, look before you leap.
• Think before you speak, and look before you leap.