Luck, good or bad, is the invisible play of mind upon affairs, the effect of mental aptitudes and habits which are not in sight, but which work and bring forth their due issues.

Individuality in opinion, or, what is more, in thinking, is simply one with thinking at all; for he who thinks thereby looks at the thing or the fact itself and takes its measure by observation directly, not content with the measures of others.

Meditation ... must be power of will and strength of attention, being like a flight to great heights wherein wings must be plied hard though joyfully.

Common sense is so just an understanding that it rises almost to a virtue; in truth, it involves virtues and their participation in judgment. For sound sense implies all powers uniting; none too prominent, so as to tyrannize; none too small, so as to be overborne.

when a great war has cut off the young men of a nation it never can be told thereafter what losses of scholars, poets, thinkers and great designers the country and the world have suffered.

Like all passions, anger has degrees, ascending from slight vexation through deepening clouds to rage, and finally to fury, which is a black and horrible tempest. In its mid-region, where it is neither too little to be motive nor too furious to be ungovernable, it has usefulness. For all feeling is as fuel, and where there is none life has no fire, and then no flame of ascent.

The greatness of common sense, and its title to reverence, appear in this, that it deals with vast complexity, that is, with the innumerable elements of a situation. Common sense discerns and judges a path through this knotted and tangled maze.