We all have the ability to study the causes of suffering and gradually to free ourselves from them....it is not the magnitude of the task that matters, it's the magnitude of our courage.

[Some of the people I'd met] were wonderful people as human beings, and some people were more difficult. I could not see a correlation between their particular genius in playing chess and music and mathematics, etc. ... with human qualities. Some were really good, wonderful people, and some were difficult characters, but there was no clear correlation. But when I met some spiritual masters, [I thought that] there had to be a correlation, and it turned out to be true.

While it may be difficult to change the world, it is always possible to change the way we look at it.

Although the optimist may be a little giddy when foreseeing the future, telling himself that it will all work out in the end when that isn't always the case, his attitude is more fruitful since, in the hope of undertaking a hundred projects, followed up by diligent action, the optimist will end up completing fifty. Conversely, in limiting himself to undertake a mere ten, the pessimist might complete five at best and often fewer, since he'll devote little energy to a task he feels to be doomed from the start.

You can't be at the same time a spiritual master and someone who is always angry. It doesn't work.

Peace is not weak. Standing up to a tank is harder than dropping a suicide bomb

we find that the optimists have an undeniable advantage over the pessimists. Many studies show that they do better on exams, in their chosen profession, and in their relationships, live longer and in better health, enjoy a better chance of surviving postoperative shock, and are less prone to depression and suicide.