“The next thing is by gentle degrees to accustom children to those things they are too much afraid of. But here great caution is to be used, that you do not make too much haste, nor attempt this cure too early, for fear lest you increase the mischief instead of remedying it.”
Sec. 115
Some Thoughts Concerning Education (1693)
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John Locke 144
English philosopher and physician 1632–1704Related quotes

“Those who apply themselves too much to little things often become incapable of great ones.”
Ceux qui s'appliquent trop aux petites choses deviennent ordinairement incapables des grandes.
Maxim 41.
Reflections; or Sentences and Moral Maxims (1665–1678)

“Do not allow children to mix drinks. It is unseemly and they use too much vermouth.”
"Parental Guidance"
Social Studies (1981)

“We are afraid to care too much, for fear that the other person does not care at all.”

Letter to Archibald Stuart http://faculty.maxwell.syr.edu/skjolly/jeffersonianfederalism.pdf http://books.google.com/books?id=ZTIoAAAAYAAJ&pg=PA837#v=onepage&q=&f=false, Philadelphia (23 December 1791)
1790s
Variant: I would rather be exposed to the inconveniences attending too much liberty, than those attending too small a degree of it.
Source: Letters of Thomas Jefferson

“If it hurts too much, make it hurt someone else instead.”
Lews Therin Telamon
(15 October 1994)