It is terribly difficult to laugh when one passes through a bad and awful phase of life. This is rarest of rare quality one can possess and I think it is possible only with extra-ordinary people like Dalai Lama. For a common man, if he does not pass on his cries to his friends and family and is just able to cope up, bear with and contain the problems to himself, he can be considered to be a laugher.
To me patience is a source for perseverance, which in turn develops strength for facing the arduous fronts of life.
It is woderful to read any article on Gandhi Ji.He was full of stength and whoever reads about him gets inspired automatically.