Both of my questions are about sentences from Abraham Lincoln's letter to the teacher of his son. I'll quote them verbatim:

1) "Teach him to listen to every one, but teach him also to filters all that he hears on a screen of truth and take only the good that comes through."

2) "Let him have the courage to be impatient, let him have the patient to be brave."

(1) I do not quite comprehend , if the used 'filter' is the verb would not it be more correct to say 'to filter' ?

(2) Would not "patience" would be the better word?

closed as off-topic by FumbleFingers, Glorfindel, Phil Sweet, vickyace, Mari-Lou A Apr 19 '17 at 19:14

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    The Guiding Light Academy offers a less problematic transcription. – Edwin Ashworth Apr 3 '17 at 14:37
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    I gather the attribution of the letter to Lincoln is problematic, in addition to the grammatical errors in the version you've found. – user888379 Apr 3 '17 at 14:39
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    Being a programmer I always start looking for the bugs in my code (my understanding in this instance) and only if failed elsewhere, Os, compilers, printed copies of the book etc. I'm not proud of my English thus always suspecting my poor knowledge of English is the source of errors. – Vladimir Zolotykh Apr 3 '17 at 14:53
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    I'm voting to close this question as off-topic because it's about typos and mistranscriptions – FumbleFingers Apr 3 '17 at 16:11
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    For an extended discussion of the history of this supposed letter from Abraham Lincoln to his son's teacher, see my answer to the question What does "quiet laughter" refer to? – Sven Yargs Apr 3 '17 at 19:06