Impermanence is a principle of harmony. When we don’t struggle against it, we are in harmony with reality.

Thanks to impermanence, everything is possible. Life itself is possible. If a grain of corn is not impermanent, it can never be transformed into a stalk of corn. If the stalk were not impermanent, it could never provide us with the ear of corn we eat.

It is not impermanence that makes us suffer. What makes us suffer is wanting things to be permanent when they are not. We need to learn to appreciate the value of impermanence. If we are in good health and are aware of impermanence, we will take good care of ourselves. When we know that the person we love is impermanent, we will cherish our beloved all the more. Impermanence teaches us to respect and value every moment and all the precious things around us and inside of us. When we practice mindfulness of impermanence, we become fresher and more loving.

Things, relationship, and ideas are so transparently impermanent, we are ever made unhappy by them...Things are impermanent, they wear out and are lost; relationship is constant friction and death awaits; ideas and beliefs have no stability, no permanency. We seek happiness in them and yet do not realize their impermanency. So sorrow becomes our constant companion and overcoming it our problem.

Everything is impermanent. Every physical and mental experience arises and passes. Everything in existence is endlessly arising out of causes and conditions. We all create suffering for ourselves through our resistance, through our desire to have things different than the way they are - that is, our clinging or aversion.

Impermanence and selflessness are not negative aspect of life, but the very foundation on which life is built. Impermanence is the constant transformation of things. Without impermanence, there can be no life. Selflessness is the interdependent nature of all things. Without interdependence, nothing could exist.

Everything is impermanent—every pleasure, every pain, every body. But the survival instincts crave permanence and control. The body wants pleasure to stay forever and pain to go away forever.

Your impermanence is a thing you should meditate on every day: There is nothing more sobering, nor scary, nor a faster-way-to-cut-the-negative-bullshit than to remember that you do not have forever. What defines your life, when it’s all said and done, is how much you influence other people’s lives, oftentimes just through your daily interactions and the courage with which you live your own. That’s what people remember. That’s what you will be known for when you’re no longer around to define yourself.

Once we recognize that all things are impermanent, we have no problem enjoying them. In fact, real peace and joy are only possible when we see clearly into the nature of impermanence.

Happiness is impermanent, but it can be renewed. You are also impermanent and also renewable, like your breath, like your steps.
You are not something permanent experiencing something impermanent. You are something impermanent experiencing something impermanent.

The Buddhist doctrine of impermanence includes the notion that there is no self... It holds that the idea of a separate, individual self is an illusion, just another form of maya, an intellectual concept that has no reality. To cling to this idea of a separate self leads to the same pain and suffering (duhkha) as the adherence to any other fixed category of thought.

We long for permanence but everything in the known universe is transient. That’s a fact but one we fight.

The assumption that humans exist within an essentially impermanent universe, taken as an operational precept, demands that the intellect become a totally aware balancing instrument. But the intellect cannot react thus without involving the entire organism. Such an organism may be recognized by its burning, driving behavior. And thus it is with a society treated as organism. But here we encounter an old inertia. Societies move to the goading of ancient, reactive impulses. They demand permanence. Any attempt to display the universe of impermanence arouses rejection patterns, fear, anger, and despair. Then how do we explain the acceptance of prescience? Simply: the giver of prescient visions, because he speaks of an absolute (permanent) realization, may be greeted with joy by humankind even while predicting the most dire events. — THE BOOK OF LETO AFTER HARQ AL-ADA

Our suffering is impermanent, and that is why we can transform it. And because happiness is impermanent, that is why we have to nourish it.