If you didn't have selfish motives, you wouldn't be suspicious and jealous of others.

Sam is very jealous of his wife, as she is very pretty.

" Professor Robinson wisely pointed out that, "Conscientiousness and Insight seem suspicious of one another, and yet they might be friends.

Sure it helps to have your eyes open and not be totally naive but being overly suspicious is unhealthy for you and your relationship too.

Modern relations between the two countries were marked mostly by suspicion - and the occasional border war.