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| The greatest of follies is to sacrifice health for any other kind of happiness. | | Uncategorized | |
| The highest, most varied and lasting pleasures are those of the mind | | Uncategorized | |
| The longer a man's fame is likely to last, the longer it will be in coming. | | Uncategorized | |
| The man never feels the want of what it never occurs to him to ask for. | | Uncategorized | |
| The memory should be specially taxed in youth, since it is then that it is strongest and most tenacious. But in choosing the things that should be committed to memory the utmost care and forethought must be exercised; as lessons well learnt in youth are never forgotten. | | Uncategorized | |
The middle ages showed us the results of thinking without experimentation, our present century
shows us what experimentation without thinking leads to. | | Science | |
| The more unintelligent a man is, the less mysterious existence seems to him | | Men | |
| The person who writes for fools is always sure of a large audience. | | Uncategorized | |
| The present is the only reality and the only certainty. | | Uncategorized | |
| The problem with Germans is that they look in the clouds for what lies at their feet. | | Uncategorized | |
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| The wise have always said the same things, and fools, who are the majority have always done just the opposite. | | Uncategorized | |
| The word of man is the most durable of all material. | | Uncategorized | |
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| There is no absurdity so obvious that it cannot be firmly planted in the human head if you only begin to impose it before the age of five, by constantly repeating it with an air of great solemnity | | Childhood | |
| There is no doubt that life is given us, not to be enjoyed, but to be overcome /to be got over. | | Uncategorized | |
| There is no more mistaken path to happiness than worldliness, revelry, high life | | Uncategorized | |
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| They tell us that suicide is the greatest piece of cowardice... that suicide is wrong; when it is quite obvious that there is nothing in the world to which every man has a more unassailable title than to his own life and person. | | Uncategorized | |
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