You must not procrastinate. Rather, you should make preparations so that even if you did die tonight, you would have no regrets. If you develop an appreciation for the uncertainty and imminence of death, your sense of the importance of using your time wisely will get stronger and stronger.
Why was the human race created? Or at least why wasn't something creditable created in place of it? God had His opportunity. He could have made a reputation. But no, He must commit this grotesque folly - a lark which must have cost Him a regret or two when He came to think it over and observe effects.
Let us live so we do not regret years of inertia and ignorance, so when we die we can say all of our energy was dedicated to the noble liberation of the human mind and spirit, beginning with my own.
These are the roots of trees, O monks, these are empty huts. Meditate, monks, do not be negligent, or else you will regret it later. This is our instruction to you.
For years afterwards when Amory thought of Eleanor he seemed still to hear the wind sobbing around him and sending little chills into the places beside his heart. The night when they rode up the slope and watched the cold moon float through the clouds, he lost a further part of him that nothing could restore; and when he lost it he lost also the power of regretting it.
I realise that man, in his imperfection, can commit innumerable errors - but to devote myself deliberately to errors, that is something I cannot do. I shall never come personally to terms with the Christian lie. Our epoch, in the next 200 years, will certainly see the end of the disease of Christianity. My regret will have been that I could not behold its demise.
The superior man accords with the course of the Mean. Though he may be all unknown, unregarded by the world, he feels no regret - It is only the sage who is able for this.
It's not my story anymore: whenever I speak about the past now, I feel as if I were talking about something that has nothing to do with me. All that remains in the present are the voice, the presence, and the importance of fulfilling my mission. I don't regret difficulties I experienced; I think they helped me to become the person I am today, I feel the way a warrior must feel after years of training; he doesn't remember the details of everything he learned, but he knows how to strike when the time is right.
Unconsciously we all have a standard by which we measure other men, and if we examine closely we find that this standard is a very simple one, and is this: we admire them, we envy them, for great qualities we ourselves lack. Hero worship consists in just that. Our heroes are men who do things which we recognize, with regret, and sometimes with a secret shame, that we cannot do. We find not much in ourselves to admire, we are always privately wanting to be like somebody else. If everybody was satisfied with himself, there would be no heroes.
There is a longing for a return to a time without the need for choices, free of the regret at the inevitable loss that all choice (however wonderful) has entailed.
China didn't want to lose the cutting edge of technology. So the idea of having a Sina Weibo was an attempt to compete with Twitter. However, it has no soul - which is freedom of expression. Nevertheless, I think the government regrets having Sina Weibo, but they cannot shut it down. That would definitely be suicidal.
Even popularity can be overdone. In Rome, along at first, you are full of regrets that Michelangelo died; but by and by, you only regret that you didn't see him do it.