The folkish state must not ...

The folkish state must not adjust its entire educational work primarily to the inoculation of mere knowledge, but to the breeding of absolutely healthy bodies. The training of mental abilities is only secondary.
The folkish state must not adjust its entire educational work primarily to the inoculation of mere knowledge, but to the breeding of absolutely healthy bodies. The training of mental abilities is only secondary.

More phrases

If one does not know to which port one is sailing, no wind is favorable.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
We are masters of the unsaid words, but slaves of those we let slip out.
I have always found that mercy bears richer fruits than strict justice.
A lie gets halfway around the world before the truth has a chance to get its pants on.

Quotes from the same author

Everlasting peace will come to the world when the last man has slain the last but one.
Only a handful of Germans in the Reich had the slightest conception of the eternal and merciless struggle for the German language, German schools, and a German way of life. Only today, when the same deplorable misery is forced on many millions of Germans from the Reich, who under foreign rule dream of their common fatherland and strive, amid their longing, at least to preserve their holy right to their mother tongue, do wider circles understand what it means to be forced to fight for one's nationality.
The goal of female education must invariably be the future mother.
It would be more in keeping with the intention of the noblest man in this world if our two Christian churches, instead of annoying Negroes with missions which they neither desire nor understand, would kindly, but in all seriousness, teach our European humanity that where parents are not healthy it is a deed pleasing to God to take pity on a poor little healthy orphan child and give him father and mother, than themselves to give birth to a sick child who will only bring unhappiness and suffering on himself and the rest of the world.
...we must pray to the Almighty not to refuse His blessing to this change and not to abandon our people in the times to come.