He is my best friend.

He strongly believes in egalitarianism.

He started calculating to obtain the ratio of the two numbers.

He is known as an excellent realist.

He is a perfectionist, so he is very strict about his work.

He is a true humanitarian, always striving to alleviate the suffering of others.

He is a realist who values reality more than dreams.

He is a pure utilitarian, all his actions are based on the pursuit of profit.

He always looks at things like a pessimist.

He is always an optimist, believing in a bright future even in difficult situations.