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.
IMMANUEL KANT, Groundwork for the Metaphysics of Morals
The universal law of justice is: act externally in such a way that the free use of your will is compatible with the freedom of everyone according to a universal law.
IMMANUEL KANT, The Metaphysical Elements of Justice
Man must be disciplined, for he is by nature raw and wild.