something that makes you think seriously
真剣に考えさせるもの (shinken ni kangae saseru mono)
"His comment gave me food for thought."
"彼のコメントは私に考えさせられた。" (kare no komento wa watashi ni kangae saserareta)
According to my understanding or opinion
to be in a position of control or leadership
to have a complaint or disagreement with someone
to be honest and open about one’s intentions
to hide evidence of one’s actions
Stay motivated even after setbacks.