Laughter (n.) is that against whose assault nothing can stand.
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Definition.com
Laughter (n.) is but a sneeze of humor when it's lacking even a tinge of philosophy. Genuine humor is replete with wisdom.
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Laughter (n.) is the greatest of human weapons, capable of blowing power, money, persuasion, supplication, and persecution to rags and atoms at a blast.
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Laughter (n.) is the greatest weapon we have and we, as humans, use it the least.
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Laughter (n.) is the one really effective weapon of the human race.