He is best known for work on moral and political philosophy.

It is based on the philosophy that students have the right to control their own education.

"My career is based on the philosophy that you have to change every time," he said.

"It would have been more on the philosophy of government."

She remembered every word he'd said on his philosophy of writing.

"Still, there is no getting around the fact you have to sell them on your philosophy."

The courses began to focus on science and natural philosophy.

He wrote a number of works on theology, philosophy and law.

But her choices have never been based on politics or philosophy.

She was known for the translation of books on philosophy.