"We must not promise what we ought not, lest we be called on to perform what we cannot."
"Success is not final, failure is not fatal: it is the courage to continue that counts."
"Courage is rightly esteemed the first of human qualities because it has been said, it is the quality which guarantees all others."
"To build may have to be the slow and laborious task of years. To destroy can be the thoughtless act of a single day."
"Every day you may make progress. Every step may be fruitful. Yet there will stretch out before you an ever-lengthening, ever-ascending, ever-improving path. You know you will never get to the end of the journey. But this, so far from discouraging, only adds to the joy and glory of the climb."