Boys, be ambitious. Be ambitious not for money, not for selfish aggrandizement, not for the evanescent thing which men call fame. Be ambitious for the attainment of all that a man can be.
The rarest quality in an epitaph is truth.
Simplify your life. Don't waste the years struggling for things that are unimportant. Don't burden yourself with possessions. Keep your needs and wants simple and enjoy what you have. Don't destroy your peace of mind by looking back, worrying about the past. Live in the present. Simplify!
It's the beauty within us that makes it possible for us to recognize the beauty around us. The question is not what you look at but what you see.
I went to the woods because I wished to live deliberately.
You must live in the present, launch yourself on every wave, find your eternity in each moment. Fools stand on their island opportunities and look toward another land. There is no other land; there is no other life but this, or the like of this. I wish to live ever as to derive my satisfactions and inspirations from the commonest events, everyday phenomena, so that what my senses hourly perceive, my daily walk, the conversation of my neighbors, may inspire me, and I may dream of no heaven but that which lies about me.
It's not what you look at that matters, it's what you see.
There is no good reason why we should fear the future, but there is every reason why we should face it seriously, neither hiding from ourselves the gravity of the problems before us nor fearing to approach these problems with the unbending, unflinching purpose to solve them aright.
If divorce has increased by one thousand percent, don't blame the women's movement. Blame the obsolete sex roles on which our marriages were based.
In the same way that plants will not grow on soil that lacks some substance indispensable to their growth, so microbes, these microscopic plants which cause infectious disease, are unable to grow in an organism which does not give them all the substances they need.
. . . why I like timetables, because they make sure I don't get lost in time.