Why add prime numbers? Prime numbers are made to be multiplied, not added.
Cosmologists are often in error, but never in doubt
Money is in the exponent. And exponent needs to be calculated precisely.
We mathematicans are all a bit crazy.
Most important part of doing physics is the knowledge of approximation.
Everybody has a capacity for a happy life. All these talks about how difficult times we live in, that's just a clever way to justify fear and laziness.