By A Lie, A Man... Annihilates His

All Thought Must, Directly Or Indirectly, By Way Of Certain Characters, Relate Ultimately To Intuitions, And Therefore, With Us, To Sensibility, Because In No Other Way Can An Object Be Given To Us.

The Only Thing Permanent Is Change.

Animals... Are There Merely As A Means To An End. That End Is Man.

The Science Of Mathematics Presents The Most Brilliant Example Of How Pure Reason May Successfully Enlarge Its Domain Without The Aid Of Experience

Human Freedom Is Realised In The Adoption Of Humanity As An End In Itself, For The One Thing That No-one Can Be Compelled To Do By Another Is To Adopt A Particular End. - 'metaphysical Principles Of Virtue