A human being is part of a whole, called by us the 'Universe,' a part limited in time and space. He experiences himself, his thoughts and feelings, as something separated from the rest--a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest us. Our task must be to free ourselves from this prison by widening our circles of compassion to embrace all living creatures and the whole of nature in its beauty.
A strong body makes the mind strong. As to the species of exercises, I advise the gun. While this gives moderate exercise to the body, it gives boldness, enterprise and independence to the mind. Games played with the ball and others of that nature, are too violent for the body and stamp no character on the mind. Let your gun therefore be the constant companion of your walks.
All men have an equal right to the free development of their faculties they have an equal right to the impartial protection of the state but it is not true, it is against all the laws of reason and equity, it is against the eternal nature of things, that the indolent man and the laborious man, the spendthrift and the economist, the imprudent and the wise, should obtain and enjoy an equal amount of goods.
Climb the mountains and get their good tidings. Nature's peace will flow into you as sunshine flows into trees. The winds will blow their own freshness into you, and the storms their energy, while cares will drop away from you like the leaves of Autumn.
Engineering is the science of economy, of conserving the energy, kinetic and potential, provided and stored up by nature for the use of man. It is the business of engineering to utilize this energy to the best advantage, so that there may be the least possible waste.
It is an error to imagine that evolution signifies a constant tendency to increased perfection. That process undoubtedly involves a constant remodelling of the organism in adaptation to new conditions but it depends on the nature of those conditions whether the directions of the modifications effected shall be upward or downward.
It is the great privilege of poverty to be happy and yet unenvied, to be healthy with physic, secure without a guard, and to obtain from the bounty of nature what the great and wealthy are compelled to procure by the help of art.
Man...is a tame or civilized animal never the less, he requires proper instruction and a fortunate nature, and then of all animals he becomes the most divine and most civilized but if he be insufficiently or ill- educated he is the most savage of earthly creatures.
Money never made a man happy yet, nor will it. There is nothing in its nature to produce happiness. The more a man has, the more he wants. Instead of its filling a vacuum, it makes one. If it satisfies one want, it doubles and trebles that want another way. That was a true proverb of the wise man, rely upon it; "Better is little with the fear of the Lord, than great treasure, and trouble therewith."
Nature is not cruel, pitilessly, indifferent. This is one of the hardest lessons for humans to learn. We cannot admit that things might be neither good nor evil, neither cruel nor kind, but simply callous -- indifferent to all suffering, lacking all purpose.
One of the most tragic things I know about human nature is that all of us tend to put off living. We are all dreaming of some magical rose garden over the horizon-instead of enjoying the roses blooming outside our windows today.
Our future may lie beyond our vision, but it is not completely beyond our control. It is the shaping impulse of America that neither fate nor nature nor the irresistible tides of history, but the work of our own hands, matched to reason and principle, that will determine our destiny. There is pride in that, even arrogance, but there is also experience and truth. In any event, it is the only way we can live.
Physics does not change the nature of the world it studies, and no science of behavior can change the essential nature of man, even though both sciences yield technologies with a vast power to manipulate their subject matters.