Take the last letter and make a new word
Gross
You are not you when you are sane.
Take the last letter and make a new word
Smile
Light travels faster than sound. This is why some people appear bright until they speak.
Take the last letter and make a new word
Tantrum
You are not you when you are sane.
Take the last letter and make a new word
Doom
The world is in despair not because there are many bad people, but because there are many good people who do nothing.