Our panel of 91 professional philosophers has responded to

31
 questions about 
Space
58
 questions about 
Abortion
89
 questions about 
Law
96
 questions about 
Time
574
 questions about 
Philosophy
221
 questions about 
Value
154
 questions about 
Sex
110
 questions about 
Animals
34
 questions about 
Music
67
 questions about 
Feminism
81
 questions about 
Identity
282
 questions about 
Knowledge
58
 questions about 
Punishment
5
 questions about 
Euthanasia
2
 questions about 
Action
39
 questions about 
Race
75
 questions about 
Beauty
218
 questions about 
Education
134
 questions about 
Love
244
 questions about 
Justice
68
 questions about 
Happiness
284
 questions about 
Mind
1280
 questions about 
Ethics
88
 questions about 
Physics
170
 questions about 
Freedom
2
 questions about 
Culture
110
 questions about 
Biology
36
 questions about 
Literature
374
 questions about 
Logic
43
 questions about 
Color
51
 questions about 
War
80
 questions about 
Death
4
 questions about 
Economics
70
 questions about 
Truth
77
 questions about 
Emotion
75
 questions about 
Perception
392
 questions about 
Religion
151
 questions about 
Existence
32
 questions about 
Sport
23
 questions about 
History
117
 questions about 
Children
208
 questions about 
Science
54
 questions about 
Medicine
24
 questions about 
Suicide
69
 questions about 
Business
124
 questions about 
Profession
287
 questions about 
Language
105
 questions about 
Art
27
 questions about 
Gender

Question of the Day

The syllogism in question is not valid. Nothing logically guarantees that the set of single girls and the set of sad girls overlap. Even if both sets have members, it does not follow that they have any members in common. Compare: Some polygons are squares. Some polygons are triangles. But it is false that some polygons are square triangles.