[jll29]

> "If you like biology at school, do psychology at university. If you like chemistry, do biology. If you like physics, do chemistry. If you like maths, do physics and if you like philosophy, do maths"

This is good advice if the objective is to do well regarding grade results. If you want to get down to the bottom of things, to understand everything and to solve fundamental questions of science, you might well want to invert the advice:

If you liked biology, study chemistry, for the processes of life are (electro-)chemical processes.

If you liked chemistry, study physics, for the processes of molecules and atoms, their formation and reactions, are physical processes.

...

[jgwil2]

The way I heard this phrased back in the day was, "Biology is really chemistry, chemistry is really physics, physics is really math." Never heard psychology or philosophy added to the chain.