The best Quotations

The most important of all sciences man can and must learn is the science of living so as to do the least evil and the greatest possible good.
- Leo Tolstoy

Do you know the writers of the following quotations?

Quotation No man should travel until he has learned the language of the country he visits. Otherwise he voluntarily makes himself a great baby-so helpless and so ridiculous. - writer
Quotation Great works are performed not by strength, but by perseverance. - writer
Quotation Caesar had perished from the world of men, had not his sword been rescued by his pen. - writer
Quotation Before you contradict an old man, my fair friend, you should endeavor to understand him. - writer
Quotation No man can love freedom heartily, but good men; tbc rest lovc not freedom, but licence. - writer
Quotation I believe in the supreme worth of the individual and in his right to life, liberty, and the pursuit of happiness. - writer