The advice from my upperclassman always comes in handy.

He is good at the game of Mahjong.

He recognizes the danger of blind obedience.

He acted with his own beliefs, not blindly following others.

He overcame his fear of fierce beasts.

The apple pie my grandmother makes is the best.

The ratio of the circumference of a circle to its diameter is called pi.

He is showing respect to the elderly.

He believes in Darwin's theory of evolution.

His theory is very interesting.