“A hero is no braver than an ordinary man, but he is braver five minutes longer.”

Go put your creed into the deed. Nor speak with double tongue.

It is one of the blessings of old friends that you can afford to be stupid with them.

Do not follow where the path may lead. Go, instead, where there is no path and leave a trail.

Nature is a mutable cloud which is always and never the same.

Life is a progress, and not a station.

The years teach much which the days never know.

Good thoughts are no better than good dreams, unless they be executed.

Bad times have a scientific value. These are occasions a good learner would not miss.