Critique of Practical Reason

Some parts incomprehensible, others outrageous (Kant is the priest of reason, basically despising feelings and emotions), some juicy (his rationalism does not exclude psychological insight and there are moments when his judgements are pre-psychoanalytical), others – rigid and harsh.

I don't understand why many rationalists (re-reading Aristotle gave me the same impression) are inherently anti-hedonistic. Why do they seem to feel that a philosophy of pleasure is a sort of betrayal of human nature, that it is somewhat base? Is that resentment, masochism or something else?

Furthermore, from a mathematical-philosophical perspective, Kant is a supercomputer. From a stylistic-philological one, he is careless and makes you suffer.

After finishing the book, I thought: thank God we have Nietzsche!