“Every age has its own blindness.”

“If you know the enemy and know yourself, you need not fear the result of a hundred battles...”

“The old that is strong does not wither, deep roots are not reached by the frost”

“We all know that light travels faster than sound. That's why certain people appear bright ...”

“Determination. No matter what field you're in, determination will surely get you to the top.”

“Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.”

“No one can continually insult you or hurt your feelings without your permission.”

“What does not destroy me, makes me stronger”

“You have power over your mind—not outside events. Realize this, and you will find strength ”

“The one unchangeable certainty is that nothing is certain or unchangeable”

“The best way out is always through.”

“If you're not stubborn, you'll give up on experiments too soon.”

“Instead of resisting to changes, surrender. Let life be with you, not against you.”