The best index to a person's character is (a) how he treats people who can't do him any good, and (b) how he treats people who can't fight back. Tweet

• character
• kindness
• compassion
• charity

Wisdom doesn't automatically come with old age. Nothing does - except wrinkles. It's true, some wines improve with age. But only if the grapes were good in the first place. Tweet

• age
• wisdom

A bad habit never disappears miraculously; it's an undo-it-yourself project. Tweet

• habit

If you want children to keep their feet on the ground, put some responsibility on their shoulders. Tweet

• responsibility
• children