The universe is under no obligation to make sense to you.

Neil DeGrasse Tyson

Logic will get you from A to Z; imagination will get you everywhere.

Albert Einstein

If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.

John von Neumann

To succeed in life you need two things: ignorance and confidence.

Mark Twain

I believe one of the greatest human failings is to prefer to be right than to be effective.

Stephen Fry

Eternity is a long time, especially towards the end.

Stephen Hawking

Remember, when you are dead, you do not know you are dead. It is only painful for others. The same applies when you are stupid.

Ricky Gervais

The IQ of a mob is the IQ of its most stupid member divided by the number of mobsters.

Terry Pratchett

Rugby is like American football, except it's played by men.

Jeremy Clackson

We all have two lives. The second one starts when we realize that we only have one.

Attributed to Confucius

Niemand ist mehr Sklave, als der sich für frei hält, ohne es zu sein.

Nobody is more enslaved than those who falsely believe they are free

Johann Wolfgang von Goethe

The way I see it, if you want the rainbow, you got to put up with the rain!

Dolly Parton