Every man takes the limits of his own field of vision for the limits of the world. This is an error of the intellect as inevitable as that error of the eye which lets you fancy that on the horizon heaven and earth meet.

Gaiety alone, as it were, is the hard cash of happiness; everything else is just a promissory note.

If I maintain my silence about my secret it is my prisoner...if I let it slip from my tongue, I am ITS prisoner.

No rose without a thorn but many a thorn without a rose.

The fourfold root of the principle of sufficent reason is "Anything perceived has a cause. All conclusions have premises. All effects have causes. All actions have motives.

As a general rule, the longer a man's fame is likely to last, the later it will be in coming; for all excellent products require time for their development.

At bottom, every state regards another as a gang of robbers who will fall upon it as soon as there is an opportunity.