I do not believe there is any one study that can be taken up that will broaden the imagination, that will be the source from which will spring more deep thinking and sincere research than the study of astronomy.

Now what is a guest? A thing of a day! A person who disturbs your routine and interferes with important concerns. Why should any one be grateful for company? Why should time and money be lavished on visitors? They come. You overwork yourself. They go. You are glad of it. You return the visit, because it's the only way to have back at them.

there was nothing in the whole world so dreadful as the power of riches wrongly used.

The world is full of happy people but no one ever hears of them. You have to fight and make a scandal to get in the papers. No one knows about all the happy people.

Be sure that you are right; and then go ahead.

I know men and women. An honourable man is an honourable man, and a liar is a liar; both are born and not made. One cannot change to the other any more than that same old leopard can change its spots. After a man tells a woman the first untruth of that sort, the others come piling thick, fast, and mountain high.

it takes the very wisest person there is to know when to talk, and when to keep still.