Never underestimate the power of denial.

Never underestimate the power of the ocean.

Crystal then read the red sticker out loud, "Dangerous, do not open." We both stared at each other for a moment. I was trying to figure out why a dumb book about power was dangerous

Never underestimate the power of human stupidity.

Never underestimate the power of a simple tool.

If the storm underestimates your power, nothing happens to him; but if you underestimate the power of the storm, you sink!