In their teaching, philosophers tried to avoid what was ideologically doubtful.
I suppose the philosophers don't try to teach the pure doctrine in the provinces.
Throughout the ages, philosophers, scientists, scholars, and religious teachers have tried to give satisfactory answers to the question of existence.
Several philosophers have tried to resolve the Carroll paradox.
There are three broad ways which philosophers have tried to approach this problem.
The top could be seen as a symbol of the spinning earth - the populated world which the philosopher tries to understand.
Throughout history, various authors and philosophers have tried to define the actual meaning.
Again the philosopher tried to check him with a gesture of his hand.
Otherwise, they would begin to try to make the universe fit their ideologies, as philosophers and bureaucrats had tried to do for centuries.
Ever since Plato, philosophers have been trying to answer the question "What is a good life for a human being?"