All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason. – Immanuel Kant
Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness. – Immanuel Kant
Immaturity is the incapacity to use ones intelligence without the guidance of another. – Immanuel Kant
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
The hypothesis may be put forward, to be tested by the s subsequent investigation, that this development has been in large part a matter of the reciprocal interaction of new factual insights and knowledge on the one hand with changes in the theoretical system on the other. – Talcott Parsons