The old believe everything, the middle-aged suspect everything, and the young know everything.
Never giving up is my special innocence.
Honest disagreement is often a good sign of progress.
译：诚实的分歧往往是进步的好兆头
Be faithful in small things because it is in them that your strength lies.
译：认真对待身边的小事，因为小事中蕴藏着你的力量
A great obstacle to happiness is to expect too much happiness.
译：幸福的一大阻碍是对“幸福”期望太高