"Wisely and slow; they stumble that run fast"

Friar Laurence is telling Romeo to consider his decision to marry Juliet carefully and thoughtfully. This demonstrates Friar Laurence's wisdom, as he is aware of what may occur. If their families find out, the marriage will not take place, the couple will be separated and possibly placed under house arrest by their families, and both families would be enraged, escalating the hatred that is already producing street rioting.

Friar Lawrence has given the two star-crossed lovers the brief advice: "Wisely and slow; they stumble that run fast", it became one of the most famous quotations from Romeo And Juliet. Friar Lawrence emphasizes the need for mature knowledge in comparison to impetuous deeds by advising Romeo and Juliet to exhibit prudence and moderation in their love. Although the advice is directed at young lovers, it has universal appeal since it emphasizes the catastrophic repercussions of impulsive judgments made in the heat of desire.

Friar Lawrence - Act 2, Scene 3.