Use truth as your anvil, nonviolence as your hammer and anything that does not stand the test when it is brought to the anvil of truth and hammered with nonviolence, reject it.
There is seven-eights of it under water for every part that shows. Anything you know you can eliminate and it only strengthens your iceberg. It is the part that doesn't show. If a writer omits something because he does not know it then there is a hole in the story.
In the kingdom of ends everything has either a price or a dignity. Whatever has a price can be replaced by something else as its equivalent; on the other hand, whatever is above all price, and therefore admits of no equivalent, has a dignity. But that which constitutes the condition under which alone something can be an end in itself does not have mere relative worth, i.e., price, but an intrinsic worth, i.e., a dignity.
Reason deserves to be called a prophet; for in showing us the consequence and effect of our actions in the present, does it not tell us what the future will be?
If a traveller does not meet with one who is his better, or his equal, let him firmly keep to his solitary journey; there is no companionship with a fool.
The observer of the soul cannot penetrate into the soul, but there doubtless is a margin where he comes into contact with it. Recognition of this contact is the fact that even the soul does not know of itself. Hence it must remain unknown. That would be sad only if there were anything apart from the soul, but there is nothing else.
I absolutely cannot see how one can later make up for having failed to go to a good school at the proper time. For this is what distinguishes the hard school as a good school from all others: that much is demanded; and sternly demanded; that the good, even the exceptional, is demanded as the norm; that praise is rare, that indulgence is nonexistent; that blame is apportioned sharply, objectively, without regard for talent or antecedents. What does one learn in a hard school? Obeying and commanding.