In the mountains of truth, you never climb in vain.

Whatever is gold does not glitter. A gentle radiance belongs to the noblest metal.

What really makes one indignant about suffering isn't the thing itself but the senselessness of it.

If we lacked curiosity, we should do less for the good of our neighbor. But, under the name of duty or pity, curiosity steals into the home of the unhappy and the needy. Perhaps even in the famous mother-love there is a good deal of curiosity.

The great wars of the present age are the effects of the study of history.

Let us beware of saying that death is the opposite of life. The living being is only a species of the dead, and a very rare species.

The errors of great men are venerable because they are more fruitful than the truths of little men.