Popular opinions, on subjects not palpable to sense, are often true, but seldom or never the whole truth.
The dictum that truth always triumphs over persecution is one of the pleasant falsehoods which men repeat after one another till they pass into commonplaces, but which all experience refutes.
There are no means of finding what either one person or many can do, but by trying - and no means by which anyone else can discover for them what it is for their happiness to do or leave undone
Truth gains more even by the errors of one who, with due study and preparation, thinks for himself, than by the true opinions of those who only hold them because they do not suffer themselves to think
However unwillingly a person who has a strong opinion may admit the possibility that his opinion may be false, he ought to be moved by the consideration that, however true it may be, if it is not fully, frequently, and fearlessly discussed, it will be held as a dead dogma, not a living truth.
There are many truths of which the full meaning cannot be realized until personal experience has brought it home.