which all the

**Years fly by, but the heart stays in the same place. **

**Use your smile to change the world. Don't let the world change your smile. **

can't control their fear, only my own.

.Ideal are like the stars --- we never reach them ,but like mariners , we chart our course by them.——Carl Schurz

** I would die for you. But I won't live for you. **

My personal failure has only strengthened my resolve to make things right.

**Life has taught us that love does not consist in gazing at each other but in looking outward together in the same direction . **

**A bird is safe in its nest — but that is not what its wings are made for. **

All things are difficult before they are easy， and every science.