Melancholy characterizes those with a superb sense of the sublime.

Ours is an age of criticism, to which everything must be subjected. The sacredness of religion, and the authority of legislation, are by many regarded as grounds for exemption from the examination by this tribunal, But, if they are exempted, and cannot lay claim to sincere respect, which reason accords only to that which has stood the test of a free and public examination.

Two things fill the mind with ever new and increasing admiration and awe, the oftener and more steadily we reflect on them: the starry heavens above me and the moral law within me.

Thrift is care and scruple in the spending of one's means. It is not a virtue and it requires neither skill nor talent.

I assert that, in any particular natural science, one encounters genuine scientific substance only to the extent that mathematics is present.

The function of the true state is to impose the minimum restrictions and safeguard the maximum liberties of the people, and it never regards the person as a thing.

Innocence is indeed a glorious thing; but, unfortunately, it does not keep very well and is easily led astray.