Eliminate all other factors, and the one which remains must be the truth.
A change of work is the best rest.
A trusty comrade is always of use; and a chronicler still more so.
The grand thing is to be able to reason backwards.
Still, it is an error to argue in front of your data. You find yourself insensibly twisting them round to fit your theories.
The Press, Watson, is a most valuable institution, if you only know how to use it.