For mankind, universe is a battle arena against universe; there is no room for crying!

To discipline your body, you need a disciplined mind!

Science is the Noah's Ark very itself! Seek no other vessel!

History respects revolutions; and yet, if a revolution is progressive, support it; if it is reactionary, resist it!

There is always something sad about the trams, may be because they are like our lives: They appear from nothingness and disappear in the horizon of the crowds.

Earth is our only citadel in the universe; but we have illogically built many more fortresses within this beautiful castle!

In the bed of suspicion, no cushion can make a man to sleep