ماهي القوى العظمى في هذا العالم؟ إنها مضاعفة إهتماماتك

“One must divide one's time between politics and equations. But our equations ar…”

“I think that only daring speculation can lead us further and not accumulation o…”

“Do not laugh at me for writing you without having anything sensible to say. But…”

“I thought of that while riding my bicycle.”