A prompt, generous letter of thanks can seal a commitment which otherwise might disappear when the going gets rough.
In politics, you have your word and your friends; go back on either and you're dead.
In politics, nothing moves unless it's pushed.
Sound doctrine is sound politics.
The mind can absorb no more than the seat can endure.
Politics is of the heart as well as of the mind. Many people don't care how much you know until they know how much you care.