Teddy Roosevelt walked softly and carried a big stick.
Donald Trump, on the other hand, is doing the exact opposite - he's walking loudly and carrying a soft stick.
So when he threatens to kill the filibuster and shut down the government, should any of us really take him seriously?
After a government spending bill failed to secure funding for his border wall and handed the Democrats a number of key victories, Donald Trump is doing what he does best.
He's getting mad online.
"The reason for the plan negotiated between the Republicans and Democrats is that we need 60 votes in the Senate which are not there! We...
either elect more Republican Senators in 2018 or change the rules now to 51%. Our country needs a good "shutdown" in September to fix mess!"
On Twitter yesterday morning he called for a repeal of the filibuster - which he blamed for the way the budget bill turned out - and also said that the government "needs a good 'shutdown' in September to fix mess!"
Trump Budget director Mick Mulvaney defended the president's remarks at a press conference a few hours later.
"This is a change-agent president and he's going to change Washington, D.C. And if it takes a shutdown, then what's what it takes. But again, that's several months away from that discussion. We have a lot to do between now and then."
So it looks like Trump is trying to rally the troops after another defeat. But isn't he kind of a paper tiger at this point? Who's scared of Trump right now in Congress?