He strongly believes in the philosophical thought, 'I think, therefore I am.'

These books are my favorites.

He climbed the mountain carrying a large backpack on his back.

This math problem needs to be solved using negative numbers.

A negative number refers to a number less than zero.

Where is the anode of this battery?

This time, the trip was very enjoyable.

The result of this equation will be a negative value.

This circuit is designed using negative logic.

He is harboring negative emotions.