One should believe only what can be chosen to be true or just. Irrational (or unjustified) beliefs should be avoided because they can have disastrous practical consequences.

A distinguished cognitive neuroscientist confessed to me that, because of his religious upbringing, he could not get rid of psychoneural dualism. The idea that one ceases to be after death was too painful to him.

All genuine philosophy transcends national boundaries. Patriotic philosophies are just nationalist ideologies.

It occurred to me that I had the duty to give society something in exchange for the free education I was getting.

In any event, I don't believe in instant philosophy, because interesting problems take a long time to understand and work out. Just think of the problems of truth and justice.

To me, work is not a burden but my main hobby. This is why I always take work with me when I go on holidays. Moreover, that's when new projects occur to me: while contemplating beautiful landscapes or seascapes.

Communication accompanies social transactions and can instruct or stultify, mobilize or intimidate, but it is no substitute for production, collaboration and fight.