I will be calm. I will be mistress of myself.

When you are content to be simply yourself and don't compare or compete, everyone will respect you.

Remember this also: it’s always easy to look back and see what we were, yesterday, ten years ago. It is hard to see what we are. If you can master that trick, you’ll get along.

If you remain calm in the midst of great chaos, it is the surest guarantee the it will eventually subside

To be calm when you've found something going on

It is easy to be calm when there is nothing to worry about, Eragon. The true test of your self-control, however, is whether you can remain calm in a trying situation. You cannot allow anger or frustration to cloud your thoughts, not at the moment. Right now, you need your mind to be clear.
Have you always been able to remain calm at times like this?
The old dragon seemed to chuckle. No. I used to growl and bite and knock down trees and tear up the ground. Once, I broke the top off of a mountain in the Spine; the other dragons were rather upset with me for that. But I have had many years to learn that losing my temper rarely helps. You have not, I know, but allow my experience to guide you in this. Let go of your worries and focus on the task at hand. The future will be what is will, and fretting about it will only make your fears more likely to come true.
I know, Eragon sighed, but it's not easy.
Of course not. Few things of worth are. Then Glaedr withdrew and left him to the silence of his own mind.

If you want to remain calm and peaceful as you go through life, you have to have high intention and low attachment. You do everything you can to create your desired outcomes, and then you let it go. Sometimes you don’t get the intended result by the date that you want. That is life. You just keep moving in the direction of your goal until you get there. Sometimes the universe has other plans, and often they are better than the ones you had in mind. That is why I recommend adding the phrase “this or something better” to the end of your affirmations.

Be gentle to all, and stern with yourself.

Keep Calm and Carry On

The mind is in its own nature when it is calm. The moment you can calm it, that [very] moment you will know the truth.

If you keep yourself calm, poised and dignified, [10] if you observe rather than are observed, if you don’t envy people with greater success, don’t let externals disconcert you – if you do all this, what more do you need?

The secret of being at peace with yourself is to always do what you know you must do.

Remain humble. Stay positive. Create your own luck. Be nice. Be polite.

Be consistent in your treatment of others. Avoid being a stressful frenemy.