Human reason has the peculiar fate in one species of its cognitions that it is burdened with questions which it cannot dismiss, since they are given to it as problems by the nature of reason itself, but which it also cannot answer, since they transcend every capacity of human reason.

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

Fallacious and misleading arguments are most easily detected if set out in correct syllogistic form.

Have patience awhile; slanders are not long-lived. Truth is the child of time; erelong she shall appear to vindicate thee.

The greatest human quest is to know what one must do in order to become a human being.

If a man is often the subject of conversation he soon becomes the subject of criticism.

Laws always lose in energy what the government gains in extent.