Hell isn't merely paved with good intentions; it's walled and roofed with them. Yes, and furnished too.

The more powerful and original a mind, the more it will incline towards the religion of solitude.

The most valuable of all education is the ability to make yourself do the thing you have to do, when it has to be done, whether you like it or not.

...wordless conditioning is crude and wholesale; cannot bring home the finer distinctions, cannot inculcate the more complex courses of behavior. For that there must be words, but words without reason... Not so much like drops of water, though water, it is true, can wear holes in the hardest granite; rather, drops of liquid sealing-wax, drops that adhere, encrust, incorporate themselves with what they fall on, till finally the rock is all one scarlet blob.

I had motives for not wanting the world to have meaning; consequently assumed that it had none, and was able without any difficulty to find satisfying reasons for this assumption ... For myself, as no doubt, for most of my contemporaries, the philosophy of meaninglessness was essentially an instrument of liberation. The liberation we desired was simultaneous liberation from a certain political and economic system, and liberation from a certain system of morality. We objected to the morality because it interfered with our sexual freedom.

One cubic centimeter cures ten gloomy sentiments.

You got rid of them. Yes, that’s just like you. Getting rid of everything unpleasant instead of learning to put up with it. Whether ‘tis better in the mind to suffer the slings and arrows of outrageous fortune, or to take arms against a sea of troubles and by opposing end them… But you don’t do either. Neither suffer nor oppose. You just abolish the slings and arrows. It’s too easy.