In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.

The natural world is the greatest source of excitement. The greatest source of visual beauty. It is the greatest source of so much in life that makes life worth living.

One man with a gun can control 100 without one.

To do a great right do a little wrong.

I restore myself when I'm alone.

To conceal anything from those to whom I am attached, is not in my nature. I can never close my lips where I have opened my heart.

Hard work, disciplined habits, modesty in living, contentment and cheerfulness.

I've learned that even when I have pains, I don't have to be one.

The things that come to those that wait may be the things left by those that got there first.

Noble life demands a noble architecture for noble uses of noble men. Lack of culture means what it has always meant: ignoble civilization and therefore imminent downfall.

The love of life is necessary to the vigorous prosecution of any undertaking.

To live is to choose. But to choose well, you must know who you are and what you stand for, where you want to go and why you want to get there.

People can tell you to keep your mouth shut, but that doesn't stop you from having your own opinion

If we couldn't laugh we would all go insane.

If you want to keep your memories, you first have to live them.

To forget is the secret of eternal youth. One grows old only through memory. There's much too little forgetting.

Concision in style, precision in thought, decision in life.

The present is theirs; the future, for which I really worked, is mine.

Those who want to live, let them fight, and those who do not want to fight in this world of eternal struggle do not deserve to live.

No one has ever become poor by giving.

Don't let making a living prevent you from making a life.