The real doubt is the doubt that doubts that it doubts.

The greatest art is philosophy.

The world is a garden of philosophy. God is its gardener; Man is the visitor. And any tree that does not bear fruits of philosophy either does not belong to that garden or is yet to be grown.

So far we have done too much of 'spatial engineering'. The real thing is 'non-spatial engineering'.

I have far more reasons to rather disbelieve that a man besides me suffers when he cries, yet I have far more sentiments, than those great reasons, to instead weep for his, far less likely, sufferings.

I have no proof for any proof.

Life is too meaningful to die.