If you have zest and enthusiasm, you attract zest and enthusiasm. Life does give back in kind.
It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.
Should you find yourself in a chronically leaking boat, energy devoted to changing vessels is likely to be more productive than energy devoted to patching leaks.
Time ripens all things; no one is born wise.
My life didn't please me, so I created my life.
This thing of being a hero, about the main thing to it is to know when to die.
Live for yourself and you will live in vain;Live for others, and you will live again.
The more you live in the present moment, the more the fear of death disappears.
Wrinkles are engraved smiles.
Each life makes its own immitation of immortality.
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.
There is also this benefit in brag: that the speaker is unconsciously expressing his own ideal. Humor him by all means, draw it all out, and hold him to it.
Even truth needs to be clad in new garments if it is to appeal to a new age.
We can allow satellites, planets, suns, universe, nay whole systems of universes, to be governed by laws, but the smallest insect, we wish to be created at once by special act.
I am not young enough to know everything.
If it is worth doing, it is worth overdoing.
The knowledge of oneself will preserve that person from vanity.
I always like walking in the rain, so no one can see me crying.
If man limits himself to a satisfied animal existence, and asks from life only what such an existence can give, the higher values of life at once disappear.
You can find the entire cosmos lurking in its least remarkable objects.
It is easier to influence strong than weak characters in life.