Evil thoughts include sensual desires, crime, profanity, pride, ambition, lust for power, etc. They are like trees along a riverbank bearing luscious fruit each season without fail. Their leaves shall never wither, and all they do shall prosper. God made man for happiness. Every man feels a desire to be happy.
All humans hate misery.
The true way of finding misery or finding happiness is written here in this verse. Don't care about his salvation or the salvation of others. They will talk and try to convince who ever they can to see it their way, don't trouble themselves about praying, reading, repenting. Does what he remembers from the bible, sunday school, etc. Feeds on the word as strength like food.