Examples:

• ‘Look before you leap’ has always been a good and useful maxim.
• Look before you leap.
• Look before you leap!
• Look before you leap.
• Look before you leap
• Look before you leap.
• Look before you leap.
• Look before you leap, keep possible consequences in mind, don't make promises you can't keep, and try to contain your excesses within reasonable limits.
• Does it matter enough to look before you leap?
• Okay, I bet someone in your position has been told many times to look before you leap.