- Beware lest you lose the substance by grasping at the shadow. Aesop
- Beware of endeavoring to become a great man in a hurry. One such attempt in ten thousand may succeed. These are fearful odds. Benjamin Disraeli
- Beware of little expenses. A small leak will sink a great ship. Benjamin Franklin
- Beware the hobby that eats. Benjamin Franklin
- Beware of no man more than of yourself; we carry our worst enemies within us. Charles Spurgeon
- I have never found it, when I have thought the battle was over and the conquest gained, and so let down my watch, the enemy had risen up and done me the greatest injury. David Brainerd