Oliver does not act like a sane person when he is angry.
In times of crisis, it is crucial to remain calm and think in a sane and rational manner.
The psychologist determined that the patient's thought processes were entirely sane and coherent.
Making decisions based on logic and reason is a sign of a sane and well-balanced mind.
The legal system relies on assessments of mental health to determine if an individual is sane or not.
