And as it is the most generous souls who have most gratitude, it is those who have most pride, and who are most base and infirm, who most allow themselves to be carried away by anger and hatred.

For each of us there is a set limit to our intellectual powers which we cannot pass.

I think; therefore I am.

The first precept was never to accept a thing as true until I knew it as such without a single doubt.

Whenever anyone has offended me, I try to raise my soul so high that the offense cannot reach it.

It is best not to go on for great quest for truth , it will only make you miserable

So blind is the curiosity by which mortals are possessed, that they often conduct their minds along unexplored routes, having no reason to hope for success, but merely being willing to risk the experiment of finding whether the truth they seek lies there.