You must be careful when you ask people whether they’re happy; it’s a question that can upset them a great deal.

It's one thing thinking something and another thing knowing it.

We fall in love or stay in love with people who are unsuitable or who no longer love us and, conversely, we feel no love towards people who would be very suitable. Love is involuntary, that's the problem. Our personal histories prepare us to be attracted to people who unconsciously evoke emotions from our childhood or adolescence.

Happiness often comes when least expected.

People fall in love more easily when they are already troubled by another emotion because we know that any intense emotional state greatly increases the risk of falling in love.

You must be careful when you ask people whether they’re happy; it’s a question that can upset them a great deal.

Making comparisons can spoil your happiness.