2183  When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us.

558  Climbing to the top demands strength, whether it is to the top of Mount Everest or to the top of your career.

658  There are only two mistakes one can make along the road to truth; not going all the way, and not starting

1630  Three things cannot long be hidden: the sun, the moon and the truth.........

1410  Beware lest you lose the substance by grasping at the shadow.