Crossword-Solution: UNASCERTAINABLE 15 letters, 1 clue 🏆 scrabble score: 19

High and motionless in the blinding sky a buzzard poised; long-tailed Mexican crows among the thorny branches creaked and whistled, choked and rattled, snored and grunted; a dove mourned inconsolably, and out of the air issued metallic insect cries--the direction whence they came as unascertainable as their source was hidden.

Schiller applies the analogy to beliefs, and proposes the name of 'Humanism' for the doctrine that to an unascertainable extent our truths are man-made products too.

And this they do not out of principle, but from impulse or, as they prefer to call it, inspiration; indeed, they regard our men of fixed principles as weaklings and cowards, who stiffen themselves by artificial rules because they cannot trust their judgments to deal with events as they arise--(the Arab regards terrestrial life as a chain of accidents)--cowards and infidels, trying to forestall by human devices the unascertainable decrees of Allah.

Now an electric current will inevitably do its work, if known and ascertained conditions are present; a personal current, so to speak, depends on personal conditions which are unascertainable.

One should never think of it with fear.[608] That state, again, which is allied with delusion and error, and in consequence of which one knows not what to do, which is unascertainable and unknown, should be regarded as belonging to the quality of Darkness.[609] Gladness, satisfaction, delight, happiness, tranquillity of heart, these are the properties of the state of Goodness.