My personal thought is that everyone should be treated equally.

He values his private life.

He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

A red sun has risen in the sky.

He is a complete stranger to me.

He crossed the road ignoring the red light.

This camera has a function to detect infrared.