Precaution is better than cure.
- Coke, Edward

Every step of life shows much caution is required.
- Goethe, Johann Von

The bird alighteth not on the spread net when it beholds another bird in the snare. Take warning by the misfortunes of others, that others may not take example from you.
- Saadi

It is a good thing to learn caution by the misfortunes of others.
- Syrus, Publilius

Caution is the confidential agent of selfishness.
- Wilson, Woodrow