Political attitudes, like our personal beliefs, are part of individual feelings. If we are politically active, then it is impossible to hide political beliefs, given that such engagement implies a certain public appearance and belonging to a certain political option. On the other hand, private beliefs and personal views concerning that individual are unnecessary, nor are they obliged to expose them publicly.
They developed Trigonometry, used mathematical models to track down the planet Jupiter and developed methods of tracking time that are still used today.
