The right use of leisure is no doubt a harder problem than the right use of our working hours. The soul is dyed the color of its leisure thoughts.
Experience is a good teacher, but her fees are very high.
Man will never be entirely willing to give up this world for the next nor the next world for this.
The wisdom of the wise is an uncommon degree of common sense.
My dear, we live in an age of transition.
Over-population is a phenomenon connected with the survival of the unfit, and it is a mechanism which has created conditions favourable to the survival of the unfit and the elimination of the fit.