No pressure, no diamonds.

The lightning spark of thought generated in the solitary mind awakens its likeness in another mind.

Pin thy faith to no man's sleeve. Hast thou not two eyes of thy own?

The lies (Western slander) which well-meaning zeal has heaped round this man (Muhammad) are disgraceful to ourselves only.

In our wide world there is but one altogether fatal personage, the dunce,--he that speaks irrationally, that sees not, and yet thinks he sees.

Speech is too often not the art of concealing thought, but of quite stifling and suspending thought, so that there is none to conceal.

A judicious man looks at Statistics, not to "get knowledge, but to save himself from having ignorance foisted 'on him".