All thought must, directly or indirectly, by way of certain
characters, relate ultimately to intuitions, and therefore, with us,
to sensibility, because in no other way can an object be given to us.
But although all our knowledge begins with experience, it does not
follow that it arises from experience.
Even philosophers will praise war as ennobling mankind, forgetting
the Greek who said: 'War is bad in that it begets more evil than it
kills.'
Experience without theory is blind, but theory without experience
is mere intellectual play.
If man makes himself a worm he must not complain when he is trodden
on.
It is not God's will merely that we should be happy, but that we
should make ourselves happy.
Live your life as though your every act were to become a universal
law.
Science is organized knowledge. Wisdom is organized life.
To be is to do.
Two things awe me most, the starry sky above me and the moral law
within me.
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.
The greatest problem for the human species, the solution of which
nature compels him to seek, is that of attaining a civil society which
can administer justice universally.
The human heart refuses to believe in a universe without purpose.
What can I know? What ought I to do? What can I hope?
Nothing is divine but what is agreeable to reason.
Freedom is independence of the compulsory will of another, and in
so far as it tends to exist with the freedom of all according to a
universal law, it is the one sole original inborn right belonging to
every man in virtue of his humanity.