Je größerer Art die Maßnahmen werden, um so weniger kann man damit überraschen.

Our knowledge of circumstances has increased, but our uncertainty, instead of having diminished, has only increased. The reason of this is, that we do not gain all our experience at once, but by degrees; so our determinations continue to be assailed incessantly by fresh experience; and the mind, if we may use the expression, must always be under arms.

If the mind is to emerge unscathed from this relentless struggle with the unforeseen, two qualities are indispensable: first, an intellect that, even in the darkest hour, retains some glimmerings of the inner light which leads to truth; and second, the courage to follow this faint light wherever it may lead.

War is the province of danger.

War is not an exercise of the will directed at an inanimate matter.

War is not merely a political act but a real political instrument, a continuation of political intercourse, a carrying out of the same by other means.