He accepted the challenge with an audacious attitude.

I was surprised by his audacious attitude.

He passionately discussed the problem of other minds in his philosophy class.

We must cooperate to solve this problem.

He finally came to after losing consciousness.

We speak Tsugaru dialect.

He is sticking to his beliefs.

His way of thinking is very philosophical.

His thought is very unique.

I believe that he will succeed.