Collocations for philosophical - adj.

be
become, get, wax
The debate was getting too philosophical for me.
I could wax philosophical on all the injustices of life.

purely
a purely philosophical argument

deeply
Roth's story is deeply philosophical.

rather

be
Try to be philosophical about it.

remain

very
quite

about
Dad's being quite philosophical about the whole thing.

Philosophical is used with these nouns:
argument, belief, bent, debate, discussion, enquiry, foundation, idea, implication, justification, outlook, point of view, position, question, reflection, speculation, thought, topic, tradition, treatment, truth, view, writing