Never let your sense of morals prevent you from doing what is right
The voice of the intellect is a soft one, but it does not rest until it has gained a hearing. Ultimately, after endless rebuffs, it succeeds. This is one of the few points in which one may be optimistic about the future of [hu]mankind
Those only are happy who have their minds fixed on some object other than their own happiness; on the happiness of others, on the improvement of mankind, even on some art or pursuit, followed not as a means, but as itself an ideal end. Aiming thus at something else, they find happiness by the way. The enjoyments of life are sufficient to make it a pleasant thing, when they are taken en passant, without being made a principal object. Once make them so, and they are immediately felt to be insufficient. They will not bear a scrutinizing examination. Ask yourself whether you are happy, and you cease to be so. The only chance is to treat, not happiness, but some end external to it, as the purpose of life. Let your self-consciousness, your scrutiny, your self-interrogation, exhaust themselves on that; and if otherwise fortunately circumstanced you will inhale happiness with the air you breathe, without dwelling on it or thinking about it, without either forestalling it in imagination, or putting it to flight by fatal questioning.
Heaven is my father and Earth is my mother, and even such a small being as I finds an intimate place in their midst. Therefore that which fills the universe I regard as my body and that which directs the universe I consider as my nature. All people are my brothers and sisters and all things are my companions
A man has made at least a start on discovering the meaning of human life when he plants shade trees under which he knows full well he will never sit
The things you think about determine the quality of your mind. Your soul takes on the colour of your thoughts.
Freedom is in danger of degenerating into mere arbitrariness unless it is lived in terms of responsibleness. That is why I recommend that the Statue of Liberty on the East Coast be supplemented by a Statue of Responsibility on the West Coast
The external world only exists for us so far as we receive it into ourselves
Be a philosopher; but, amidst all your philosophy, be still a man [sic]
If you bring forth what is within you, what you bring forth will save you. If you do not bring forth what is within you, what you do not bring forth will destroy you
Sometimes even to live is an act of courage
We must always change, renew, rejuvenate ourselves; otherwise, we harden
Nothing is worth more than this day. You cannot relive yesterday. Tomorrow is still beyond your reach
You can easily judge the character of a man by how he treats those who can do nothing for him
Hence it comes that all armed Prophets have been victorious, and all unarmed Prophets have been destroyed