The thoughts of Flanders and Swann:

The First law of Thermodynamics.
Heat is work and work is heat
Heat is work and work is heat
Very Good.
The Second law of thermodynamics.
Heat cannot of itself pass from one body to a hotter body
Heat cannot of itself pass from one body to a hotter body
Heat won't pass from a cooler to a hotter
Heat won't pass from a cooler to a hotter
You can try it if you like but you'd far better not-a
You can try it if you like but you'd far better not-a
'Cos the cold in the cooler will get hotter as a rule-a
'Cos the cold in the cooler will get hotter as a rule-a
'Cos the hotter body's heat will pass to the cooler
'Cos the hotter body's heat will pass to the cooler
Heat is work and work is heat and work is heat and heat is work
Heat will pass by conduction and
Heat will pass by conduction and
Heat will pass by convection and
Heat will pass by convection and
Heat will pass by radiation
Heat will pass by radiation
And that's a physical law

Heat is work and work's a curse
And all the heat in the universe
Is gonna cool down,
'Cos it can't increase
Then there'll be no more work
And there'll be perfect peace
Really?
Yeah, that's entropy, Man.
And all because of the second law of thermodynamics which lays down:
That you can't pass heat from a cooler to a hotter
Try it if you like but you'd far better not-a
'Cos the cold in the cooler will get hotter as a rule-a
'Cos the hotter body's heat will pass to the cooler

Oh, you can't pass heat from a cooler to a hotter
Try it if you like but you'll only look a fool-a
'Cos the cold in the cooler will get hotter as a rule-a
And that's a physical law
Oh, I'm hot
That's because you've been working!
Oh, Beatles, nothing!
That's the first and second laws of thermodynamics.