One must never allow oneself to acquire an exaggerated sense of one's own importance. There's no necessity to burden oneself with absolutes

My dear fellow, who will let you?" "That's not the point. The point is, who will stop me?

Aristotle may be regarded as the cultural barometer of Western history. Whenever his influence dominated the scene, it paved the way for one of history's brilliant eras; whenever it fell, so did mankind.

That an error made on your own is safer than ten truths accepted on faith, because the first leaves you the means to correct it but the second destroys your capacity to distinguish truth from error.

One's own independent judgment is the means by which one must choose one's actions, but it is not a moral criterion nor a moral validation; only reference to a demonstrable principle can validate one's choices.

Because I never have any definite destination. This ship is not for going to places, but for getting away from them. When I stop at a port, it's only for the sheer pleasure of leaving it. I always think: here's one more place that can't hold me.

Kant is the most evil man in mankind's history.