Mistake

Do not learn from your mistakes, learn from the mistakes of others so that you do not make any.
S.Karsten

Nature

All my life through, the new sights of Nature made me rejoice like a child.

Marie Curie

Trust

The feeling of being trusted is like the feeling of being wanted, being respected; it is an element of happy life and also there is an old saying about the trust that compares it to a vase...once it is broken, though you can fix the vase, but it cannot be the same...and there is another saying that without trust, it is nothing and we have to build the trust, though sometimes you have pay the price.

Miracle

There are only two ways to live your life: one is as though nothing is a miracle; the other is as though everything is a miracle.

Einstein