Every calamity is a spur and a valuable hint.

We lie in the lap of immense intelligence.

If you want a friend you need to be a friend.

I am sure of this, that by going much alone a man will get more of a noble courage in thought and word than from all the wisdom that is in books.

The crowning fortune of a man is to be born to some pursuit which finds him employment and happiness, whether it be to make baskets, or broadswords, or canals, or statues, or songs.

Every revolution was first a thought in one man's mind; and when the same thought occurs to another man, it is the key to that era.

As Arkwright and Whitney were the demi-gods of cotton, so prolific Time will yet bring an inventor to every plant. There is not a property in nature but a mind is born to seek and find it.