Dare to think!
We are enriched not by what we possess, but by what we can do without.
Have the courage to use your own reason- That is the motto of enlightenment.
In the kingdom of ends everything has either a price or a dignity. What has a price can be replaced by something else as its equivalent; what on the other hand is raised above all price and therefore admits of no equivalent has a dignity.
By a lie a man throws away and as it were annihilates his dignity as a man.
Coffee! Coffee!
It is of great consequence to have previously determined the concept that one wants to elucidate through observation before questioning experience about it; for one finds in experience what one needs only if one knows in advance what to look for.
From the crooked timber of humanity, never was a straight thing made.
True politics cannot take a single step without first paying homage to morals, and while politics itself is a difficult art, its combination with morals is no art at all; for morals cuts the Gordian knot which politics cannot solve as soon as the two are in conflict.
When the tremulous radiance of a summer night fills with twinkling stars and the moon itself is full, I am slowly drawn into a state of enhanced sensitivity made of friendship and disdain for the world and eternity.
Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.