Knowledge has to be improved, challenged, and increased constantly, or it vanishes.

Some people’s self-esteem was secretly improved when they discovered that their then-lovers had killed themselves over them.

19. Those who are the happiest are not necessarily those for whom life has been easiest. Emotional stability results from an attitude. It is refusing to yield to depression and fear, even when black clouds float overhead. It is improving that which can be improved and accepting that which is inevitable.

You must have hope in a better future and have faith in this hope. But then you must forget your hope and focus on this moment now.