These quotes are from Anne Frank's diary, which she began writing on her 13th birthday:
I keep my ideals, because in spite of everything I still believe that people are really good at heart.
I don't think of all the misery but of the beauty that still remains.
How wonderful it is that nobody need wait a single moment before starting to improve the world.
No one has ever become poor by giving.
Parents can only give good advice or put them on the right paths, but the final forming of a person's character lies in their own hands.
Whoever is happy will make others happy, too.