"A menudo un dictador es un revolucionario que hizo carrera. A menudo un revolucionario es un burgués que no la hizo."

"El imán humilla al hierro. Es una teoría sobre el amor."

"Moraleja de todas las fábulas: el hombre es un animal."

"It has been a long-standing challege for to construct a theory of quantum gravity. String theory is the leading candi…"

"In most situations, the contradictory requirements of quantum mechanics and general relativity are not a problem, bec…"

"These of are very powerful. Let us recall the situation in flat space. If we have a massive in flat space then we can…"

"Interestingly, both quantum entanglement and s date back to two articles written by Albert Einstein and his collabora…"

"... spacetime as a concept leads to some … where the equations fail. This happens in the interiors of the black holes…"

"Blessed be God, so that we can, in a democratic and pluralistic society, express our thoughts, and we must always giv…"

"What kind of pluralism and democracy are we talking about, when today automatically one becomes an enemy if you do no…"