The pursuit of science leads only to the insoluble.

You asked me where I generally lived. In my workshop [i.e. in his study] in the mornings and always in the library in the evening. Books are companions even if you don’t open them.

Having the courage to live within one's means is respectability.

Success is a product of unremitting attention to purpose.

As men advance in life, all passions resolve themselves into money. Love, ambition, even poetry, end in this.

A precedent embalms a principle.

I suppose, to use our national motto, something will turn up.