Sometimes, counter-intuitively, it's easier to make a major change than a minor change. When a habit is changing very gradually, we may lose interest, give way under stress, or dismiss the change as insignificant. There's an excitement and an energy that comes from a big transformation, and that helps to create a habit.

What's fun for other people may not be fun for you- and vice versa.

Getting control of stuff makes people feel like they have more control over their lives - maybe irrationally, but it's one of these psychological truths.

Time waits for no ovary.

Nothing,' wrote Tolstoy, 'can make our life, or the lives of other people, more beautiful than perpetual kindness.

Pay close attention to any flame of enthusiasm.

A book is a better way to develop a complicated idea, or to tell a big story and to show how ideas weave in and out of each other, which is something that comes up a lot in happiness because all these ideas are interconnected.