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.

Pathogens can pose a significant threat to human health.

This pathogen is a new type of virus.

He died of disease at a young age.

My father made a new seedbed in the garden.