Harry Potter and the Half-Blood Prince

"Truth is often hidden beneath layers of deception."

"Power corrupts those unprepared for it."

"Intent matters greatly in magic."

"Solitude can breed both wisdom and despair."

"The mind is capable of both wonder and darkness."

"Redemption is always possible."

"Knowledge without wisdom is dangerous."

"Fear often prevents us from seeing truth."

"The past is never truly past."

"Prejudice clouds judgment."

"Evil is not born; it is made."

"Magic requires both power and understanding."

"Certainty is often the mark of a mistake."

"The truth is generally preferable to a lie."

"Prophecy is a tricky thing."

"Trust is earned through action."

"Vulnerability is not a weakness."

"Ambition is a dangerous thing."

"Magical ability can sometimes be dangerous if it is not controlled."

"Horcruxes represent the ultimate in magical wickedness."

"The mind is not a television set."

"Youth cannot know how age thinks and feels."

"The most important thing is to choose correctly."

"It is impossible to manufacture or imitate love."

"Wandless magic is very rare."

"Memories are not always accurate."

"Love is a force that is often underestimated by wizards."

"Understanding is the first step to acceptance, and only with acceptance can there be recovery."

"Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy."

"The memory is a wonderful thing if you don't have to deal with the past."