[They say] "We do not know how this is, but we know that God can do it." You poor fools! read more

[They say] "We do not know how this is, but we know that God can do it." You poor fools! God can make a cow out of a tree, but has He ever done so? Therefore show some reason why a thing is so, or cease to hold that it is so.

The reason teaching has to go on is that children are not born human; they are made so.

The reason teaching has to go on is that children are not born human; they are made so.

Science commits suicide when it adopts a creed.

Science commits suicide when it adopts a creed.

Only God helps the badly dressed.

Only God helps the badly dressed.

The criterion of truth is that it works even if nobody is prepared to acknowledge it.

The criterion of truth is that it works even if nobody is prepared to acknowledge it.

Never do today what you can put off till tomorrow. Delay may give clearer light as to what is best read more

Never do today what you can put off till tomorrow. Delay may give clearer light as to what is best to be done.

Society is only possible on these terms, that the individual finds therein a strengthening of his own ego and his read more

Society is only possible on these terms, that the individual finds therein a strengthening of his own ego and his own will.

Scientific research sooner or later, but inevitably, encounters something ultimately given that it cannot trace back to something else of read more

Scientific research sooner or later, but inevitably, encounters something ultimately given that it cannot trace back to something else of which it would appear as the regular or necessary derivative. Scientific progress consists in pushing further back this ultimately given.

Without speculation there is no good and original observation.

Without speculation there is no good and original observation.