“Above all, don't lie to yourself. The man who lies to himself and listens to his own lie comes to a point that he cannot distinguish the truth within him, or around him, and so loses all respect for himself and for others. And having no respect he ceases to love.” 

 - ...

David Hume was completely at ease with contradictions. This way he could avoid getting into extremities. 

He used to contradict himself by providing a counter-argument against his own statements. This way, no matter how contradictory it sounded, it provided an insight into life, which it...