To improve is to change; to be perfect is to change often.

God, give us the grace to accept with serenity the things that cannot be changed, courage to change the things which should be changed, and the wisdom to distinguish the one from the other.

If you want to change the world, pick up your pen and write.

Anger, resentment and jealousy doesn’t change the heart of others—it only changes yours.

Human nature will not change. In any future great national trial, compared with the men of this, we shall have as weak and as strong, as silly and as wise, as bad and as good.

They [the Americans] have all a lively faith in the perfectibility of man, they judge that the diffusion of knowledge must necessarily be advantageous, and the consequences of ignorance fatal; they all consider society as a body in a state of improvement, humanity as a changing scene, in which nothing is, or ought to be, permanent; and they admit that what appears to them today to be good, may be superseded by something better tomorrow.

Usually when people are sad, they don’t do anything. They just cry over their condition. But when they get angry, they bring about a change.

Maturity is the ability to live in peace with that which we cannot change.

The greatest revolution of our generation is the discovery that human beings, by changing the inner attitudes of their minds, can change the outer aspects of their lives.

Most bold change is the result of a hundred thousand tiny changes that culminate in a bold product or procedure or structure.

Believing as I do that man in the distant future will be a far more perfect creature than he now is, it is an intolerable thought that he and all other sentient beings are doomed to complete annihilation after such long-continued slow progress. To those who fully admit the immortality of the human soul, the destruction of our world will not appear so dreadful.

It is easy in the world to live after the world’s opinion; it is easy in solitude to live after our own; but the great man is he who in the midst of the crowd keeps with perfect sweetness the independence of solitude.

Not a having and a resting, but a growing and a becoming is the character of perfection as culture conceives it.

We the people of the United States, in order to form a more perfect Union, establish justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this Constitution for the United States of America.

The indefatigable pursuit of an unattainable perfection, even though it consists in nothing more than in the pounding of an old piano, is what alone gives a meaning to our life on this unavailing star.

Nowadays the world is becoming increasingly materialistic, and mankind is reaching toward the very zenith of external progress, driven by an insatiable desire for power and vast possessions. Yet by this vain striving for perfection in a world where everything is relative, they wander even further away from inward peace and happiness of the mind.

It is through art, and through art only, that we can realize our perfection; through art and art only that we can shield ourselves from the sordid perils of actual existence.

And, more importantly, reach for the stars. And realize that it is never too late—not now, not ever—for you to pursue you passion, your pursuit of perfection. And most importantly, your perseverance for making it happen.

My strength is made perfect in weakness.

Nothing quite new is perfect.

Creativity is often blocked to trying to be perfect. Creativity is allowing yourself to make mistakes.

The compass and the square produce perfect circles and squares. By the sages, the human relations are perfectly exhibited.

I’m not perfect. And who knows how many times I’ve fallen short. We all fall short. That’s the amazing thing about the grace of God.

Perfect wisdom has four parts; Wisdom, the principle of doing things right. Justice, the principle of doing things equally in public and private. Fortitude, the principle of not fleeing danger, but meeting it. Temperance, the principle of subduing desires and living moderately.

Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction, and skillful execution; it represents the wide choice of many alternatives.

If you do build a great experience, customers tell each other about that. Word of mouth is very powerful.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

To understand the true quality of people, you must look into their minds, and examine their pursuits and aversions.

The two qualities that chiefly inspire regard and affection [are] that a thing is you own and that it is your only one.

We acquire a particular quality by acting in a particular way.