Before the exam, the teacher reminded us of the important points again just to make sure.

Just in case, let's bring an umbrella.

He has a habit of reciting the Nenbutsu every day.

He sent a reminder about tomorrow's meeting by email.

I reminded him about the meeting tomorrow.

The emperor's imperial concern should be the happiness of the people.

He likes to take a walk in the park at dusk.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.