Immanuel Kant is thought to be perhaps the greatest of all philosophers.
In his main work, the 1000-page "Critique of Pure Reason", Kant analysed the working of Man\'s thinking.
Firstly, he founded the globally acknowledged \'categorical imperative\' in moral philosophy; secondly, he became the first philosopher to succeed in answering that question as old as humanity of how knowledge arises in our brains.
And Kant did make, in the 18th Century, two great discoveries which engage us still today.
Immanuel Kant is thought to be perhaps the greatest of all philosophers