…although it is very right to think about the future, it is very wrong to be controlled by it. The difficulty with people who are a prey to these fears is that they are controlled by the future, they are dominated by thoughts of it, and there they are wringing their hands, doing nothing, depressed by fears about it. In fact, they are completely governed and mastered by the unknown future, and that is always wrong. To take thought is right, but to be controlled by the future is all wrong. Now that is a fundamental proposition and the world has discovered it. It has told us not to cross our bridges until we get to them. Put that into your Christian teaching, for the world is right there, and the Christian must accept that wisdom. Don’t cross your bridges until you come to them. Indeed, many Scriptural statements to the same effect have become proverbial—‘take no thought for the morrow’, ‘Sufficient unto the day is the evil thereof’. Certainly the New Testament raises that concept and puts it in its spiritual form.
But it is true on the lowest level—‘Sufficient unto the day is the evil thereof’. That is sound common sense. As we saw before, it is a waste of time to be concerned about the past which you cannot affect; but it is equally wrong to be worried about the future which at the moment is obscure. ‘One step enough for me.’ Live in the present to the maximum and do not let your future mortgage your present any more than you should let the past mortgage your present.