People who always feel jolly, ...

People who always feel jolly, no matter where they are or what happens to them—who have the organ of hope preposterously developed—who are endowed with an uncongealable sanguine temperament—who never feel concerned about the price of corn—and who cannot, by any possibility, discover any but the bright side of a picture—are very apt to go to extremes, and exaggerate with 40-horse microscopic power.
People who always feel jolly, no matter where they are or what happens to them—who have the organ of hope preposterously developed—who are endowed with an uncongealable sanguine temperament—who never feel concerned about the price of corn—and who cannot, by any possibility, discover any but the bright side of a picture—are very apt to go to extremes, and exaggerate with 40-horse microscopic power.

Quotes from the same author

Whenever you find yourself on the side of the majority, it is time to pause and reflect.
Wrinkles should merely indicate where smiles have been.
Whoever is happy will make others happy, too.
Always tell the truth. That way, you don't have to remember what you said.
A thing long expected takes the form of the unexpected when at last it comes.