Hegel's philosophical thoughts are mainly divided into phenomenological metaphysics, dialectical epistemology, philosophy of law and philosophy of spiritual history. He wanted to compile an encyclopedia of philosophy before his death, but later he died because of war and illness, leaving only the outline of the encyclopedia of philosophy.

Phenomenology of Spirit is the foundation and introductory book of Hegel's philosophy system, and it is a must-read.

Logic is divided into two books: big logic and small logic, which are the theoretical books of Hegel's dialectics.

Principles of Philosophy of Right is the representative work of Hegel's philosophy of right.

Philosophy of History is a masterpiece of Hegel's philosophy of history, which is highly readable, interesting and not boring to read.

Lecture notes on the history of philosophy is a book on the history of philosophy edited by his lecture notes on the history of philosophy in universities. It records philosophers and their thoughts so far, and contains a lot of Hegel's own understanding and evaluation. His lectures on the history of philosophy are very interesting, which provides different ideas for reading books on the history of philosophy that are used to Russell's edition and Woolf's edition.

Kant

Three Criticism is Kant's most important work.

Critique of pure reason

Criticism of practical reason

Critique of Judgment

In addition, there are "On Permanent Peace" and "Introduction to Future Metaphysics", and there are many papers, so I won't list them one by one.

Schopenhauer

The most critical book is The World as Will and Representation, which is the core work of Schopenhauer's philosophy.

On Vision and Color is his epistemological work.

The four roots of the rule of sufficient reason are his college graduation thesis.

On Freedom of Will and Wisdom of Life and Complete Works of Pessimism are his prose works. His prose is beautiful and his language is beautiful and profound.

Schelling

Sports Master was a great objective idealist thinker and romanticist. He wrote few books in his life, but his papers and speeches were very rich.

The most beautiful and wonderful thing is one of his papers, philosophy and religion.

Other works include the First Draft of Natural Philosophy System and Transcendental Idealism System.