Whatever he says, let his inner resolution be not to bear whatever comes to him, but to bear it 'for a reasonable period'--and let the reasonable period be shorter than the trial is likely to last. it need not be much shorter; in attacks on patience, chastity, and fortitude, the fun is to make the man yield just when (had he but known it) relief was almost in sight.
It may be no less dangerous to claim, on certain occasions, too little than too much. there is something captivating in spirit and intrepidity, to which we often yield as to a resistless power; nor can we often yield as to a resistless power; nor can he reasonably expect the confidence of others who too apparently distrusts himself.
However we select from nature a complex [of phenomena] using the criterion of simplicity, in no case will its theoretical treatment turn out to be forever appropriate (sufficient).... I do not doubt that the day will come when [general relativity], too, will have to yield to another one, for reasons which at present we do not yet surmise. I believe that this process of deepening theory has no limits.
A young man before he leaves the shelter of his father's house, and the guard of a tutor, should be fortify'd with resolution, and made acquainted with men, to secure his virtues, lest he should be led into some ruinous course, or fatal precipice, before he is sufficiently acquainted with the dangers of conversation, and his steadiness enough not to yield to every temptation.
Life continues, and some mornings, weary of the noise, discouraged by the prospect of the interminable work to keep after, sickened also by the madness of the world that leaps at you from the newspaper, finally convinced that i will not be equal to it and that i will disappoint everyone - all i want to do is sit down and wait for evening. This is what i feel like, and sometimes i yield to it.