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. – Immanuel Kant
Suicide is not abominable because God prohibits it; God prohibits it because it is abominable. – Immanuel Kant
Intuition and concepts constitute… the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge. – Immanuel Kant
In every department of physical science there is only so much science, properly so-called, as there is mathematics. – Immanuel Kant