He who would learn to fly one day must first learn to stand and walk and run and climb and dance; one cannot fly into flying.

Liberal institutions straightway cease being liberal the moment they are soundly established: Once this is attained, no more grievous and more thorough enemies of freedom exist than liberal institutions.

The quality of a marriage is proven by its ability to tolerate an occasional "exception.

It is so little true that martyrs offer any support to the truth of a cause that I am inclined to deny that any martyr has ever had anything to do with the truth at all.

The disappointed one speaks. I searched for great human beings; I always found only the apes of their ideals.

In pain there is as much wisdom as in pleasure: like the latter it is one of the best self preservatives of a species.

I love him who laboureth and inventeth, that he may build the house for the Superman, and prepare for him earth, animal, and plant: for thus seeketh he his own down-going.