We find that the more a cultivated reason devotes itself to the aim of enjoying life and happiness, the further does man get away from true contentment.

Sincerity is the indispensable ground of all conscientiousness, and by consequence of all heartfelt religion.

If justice perishes, human life on Earth has lost its meaning.

The more we come in contact with animals and observe their behaviour, the more we love them, for we see how great is their care of the young.

That Logic has advanced in this sure course, even from the earliest times, is apparent from the fact that, since Aristotle, it has been unable to advance a step, and thus to all appearance has reached its completion.

For peace to reign on Earth, humans must evolve into new beings who have learned to see the whole first.

Philosophy stands in need of a science which shall determine the possibility, principles, and extent of human knowledge à priori.