Happiness has no tomorrow or yesterday. It does not miss the past or yearn for the future. It only has the present.

If you know how to arrange yesterday, today, and tomorrow, you will know how to take control of your life.

Don’t lament about yesterday, even though it was the tomorrow of the day before yesterday; don’t fantasize about tomorrow, because it will be the yesterday of the day after tomorrow.

There are three days in life: yesterday, today, and tomorrow. Yesterday has passed and tomorrow has not yet come. Only by seizing today and cherishing today can we add brilliance to life.

Yesterday was a canceled check, tomorrow is futures, and only today is usable cash.

Often the teacher on the stage has taught me everything, but the students in the audience are still clueless.

The only thing most people do better than others is to recognize their own handwriting.

"Development" is a modern behavior pattern of cutting down forests, erecting high-rise buildings, and then planting low vegetation.

It is difficult to say what is impossible, because yesterday’s dream can be today’s hope, and it can also become tomorrow’s reality.

The most pitiable thing about human nature is that we always dream of a wonderful rose garden on the horizon instead of appreciating the roses blooming in our windows today.