"情熱を失った人ほど老いている者はいない"
“I make myself rich by making my wants few ”
“Night is certainly more novel and less profane than day ”
“None are so old as those who have outlived enthusiasm”
“We need the tonic of wildness ”
“The future starts today, not tomorrow”
“The supreme art of war is to subdue the enemy without fighting.”
“People cry not because they’re weak, it’s because they’ve been strong for too long.”
“Every failed experiment is one step closer to success.”
“There is just one thing that makes your dream become impossible: the fear of failure.”
“I don't like that man. I must get to know him better.”
“We all know that light travels faster than sound. That's why certain people appear bright ...”
“If you want to live a happy life, tie it to a goal, not to people or things.”
“These pains you feel are messengers. Listen to them”
“If you know the enemy and know yourself, you need not fear the result of a hundred battles...”