Try these:
If you don't like something, change it. If you can't change it, change your attitude. Don't complain.
You can learn new things at any time in your life if you're willing to be a beginner. If you actually learn to like being a beginner, the whole world opens up to you.
The worst thing you can possibly do is worrying and thinking about what you could have done.
Life is about not knowing, having to change, taking the moment and making the best of it, without knowing what's going to happen next.
I cannot say whether things will get better if we change, what I can say is they must change if they are to get better.
One changes from day to day, and after a few years have passed one has completely altered.
Our destiny changes with our thought, we shall become what we wish to become, do what we wish to do, when our habitual thought corresponds with our desire.
If we want everything to remain as it is, it will be necessary for everything to change.
The main dangers in this life are the people who want to change everything or nothing.
In wisdom gathered over time I have found that every experience is a form of exploration.
The question for each man is not what he would do if he had the means, time, influence and educational advantages, but what he will do with the things he has.
Do not wait for ideal circumstances, nor the best opportunities. They will never come.
People always fear change. People feared electricity when it was invented, didn't they? People feared coal, they feared gas powered engines. There will always be ignorance, and ignorance leads to fear. But with time, people will come to accept their silicon masters.
The only sense that is common in the long run, is the sense of change and we all instinctively avoid it.