Many are less fortunate than you' may not be a roof to live under, but it will serve to retire beneath in the event of a shower.

It is hardly to be believed how spiritual reflections when mixed with a little physics can hold people's attention and give them a livelier idea of God than do the often ill-applied examples of his wrath.

The natural scientists of the previous age knew less than we do and believed they were very close to the goal: we have taken very great steps in its direction and now discover we are still very far away from it. With the most rational philosophers an increase in their knowledge is always attended by an increased conviction of their ignorance.

Most men of education are more superstitious than they admit - nay, than they think.

What we have to discover for ourselves leaves behind in our mind a pathway that can be used on another occasion.

It is almost everywhere the case that soon after it is begotten the greater part of human wisdom is laid to rest in repositories.

There can hardly be a stranger commodity in the world than books. Printed by people who don't understand them; sold by people who don't understand them; bound, criticized and read by people who don't understand them; and now even written by people who don't understand them.