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"There is no doubt that I, also, had long been aware of the problem, i.e. producing X-ray interferences, before the inherent difficulties had finally been surmounted."
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"I've always had difficulties with female characters."
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Personal Development

"I sometimes suspect that half our difficulties are imaginary and that if we kept quiet about them they would disappear."
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Personal Development

"Our achievements speak for themselves. What we have to keep track of are our failures, discouragements and doubts. We tend to forget the past difficulties, the many false starts, and the painful groping."
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Personal Development

"It seems that the greatest difficulty is to find the end. Don't try to find it, it's there already."
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Personal Development

"No difficulty can come to you (your way). If the mind wavers, difficulty will embrace you! That is all, the law of the universe is just this."
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Personal Development

"Sometimes I write notes that I have difficulty singing."
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Personal Development

"It's not so easy... it's not possible."
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Personal Development

"The difficulties of conducting espionage against the Soviet Union in the Soviet Union were such that historically the Agency had backed away from the task."
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Personal Development

"I really worked to try and be creative enough on the guitar parts so those who aren't real educated would know that there was some difficulty in doing it."
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Personal Development

"When things go right it's hard to figure out why, but when things go wrong it's really easy."
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"There is no doubt that I, also, had long been aware of the problem, i.e. producing X-ray interferences, before the inherent difficulties had finally been surmounted."
Difficulty

"For in 1900 all electromagnetic radiation of longer wavelengths was already known at least to the extent that one could not seek in it the more striking characteristics of X-rays such as, for example, the strong penetrating power."
Power

"For both reasons, owing to the thermal motion and to the working together of various wavelengths, factors arise which, in a similar manner to the structural factor, exert some influence upon the brightness of the interference points but not upon their location."
Influence

"If diffraction or interference phenomena were to be sought it was therefore necessary, in accordance with the basic principles of wave theory, to select for the test arrangement far smaller decisive dimensions than those employed in corresponding tests with visible light."
Light

"Notwithstanding these major arguments the wave theory initially did not meet with complete acceptance."
Acceptance
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