Speculations apparently the most unprofitable have almost invariably been those from which the greatest practical applications have emanated.

The barrier has begun to yield.

The besetting evil of our age is the temptation to squander and dilute thought on a thousand different lines of inquiry.

[When nature appears complicated:] The moment we contemplate it as it is, and attain a position from which we can take a commanding view, though but of a small part of its plan, we never fail to recognize that sublime simplicity on which the mind rests satisfied that it has attained the truth.

Humans always have fear of an unknown situation -- this is normal. The important thing is what we do about it. If fear is permitted to become a paralyzing thing that interferes with proper action, then it is harmful. The best antidote to fear is to know all we can about a situation.

Speculations apparently the most unprofitable have almost invariably been those from which the greatest practical applications have emanated.

No doubt the testimony of natural reason, on whatever exercised, must, of necessity, stop short of those truths which it is the object of revelation to make known; still it places the existence and personal attributes of the Deity on such grounds as to render doubts absurd and atheism ridiculous.