Author of quotes: Gyetrul Jigme Rinpoche

Many people think that tolerance is "Do what you want, if it's not bothering me." As long as you do what suits me, I tolerate you, I'm tolerant. But I'm not happy for you really! If you do that I don't like my tolerance ends here. But this is not tolerance in this sense. In fact, tolerance is the willingness to accept that the other also wants to be happy. If he's good, even if I do interfere, I can accept that. I can be happy that another happy.
Tolerance comes from understanding that we are all equal. We all want to be happy. If you feel that you can accept others, such as wanting to be happy. They want to be happy and we also want them to be happy. This is tolerance.